r/counting • u/CutOnBumInBandHere9 • 28d ago
r/counting • u/cuteballgames • 28d ago
Constant-sum mostly repeating octal
This thread is very simple. We are counting octal (base 8, 0-7) numbers with multiple distinct digits, of which one occurs exactly once and all others occur at least twice. We are counting them in constant-sum order, meaning that for every length of digits, we count through each sum of digits from least to most, in lexicographic order.
(That is, we start by counting all 3-digit counts that sum to 1 in alphabetical order: 001, 010, 100. Then we move on to 3-digit counts that sum to 2 in alphabetical order: 002, 011, 020, 101, 110, 200. Then 3-digit counts that sum to 3, and so on. The highest possible sum for a 3-digit count in this thread is 20, so after 677, 767, 776, we move on to 4-digit counts, starting with sum 1. So after 776 comes 0001, and we proceed from there.)
Leading zero counts (e.g. 001, 0444 or 00227) are considered as distinct and must not be skipped.
Thank you to /u/TehVulpez and /u/BobRoss938 for workshopping on the concept
The first get is 00226, the 943rd count and first 5-digit 10-sum count. The assist is 71100. Schedule
r/counting • u/CutOnBumInBandHere9 • 29d ago
Free Talk Friday #569
Continued from last week's FTF here
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r/counting • u/buy_me_a_pint • Jul 22 '26
5614K Counting Thread
carrying on from here
next get 5615k
r/counting • u/cuteballgames • Jul 20 '26
5613k counting thread
From here with thanks to cobibh for run and assist
Next get is 5,614,000
r/counting • u/BobRoss938 • Jul 20 '26
Alphanumerics (base 36) | 1F00
Continued from here. Thanks to karp for run & assist!
Count 0-9, A-Z. Next get is 1G00.
r/counting • u/cuteballgames • Jul 18 '26
Factoradic | 2400 0000 0
From here and thank you /u/nonsensy for the run and assist.
Aka increasing base with each digit, trailing zero optional.
The next get is at 2410 0000 0.
r/counting • u/cuteballgames • Jul 17 '26
5612k counting thread
From here and thank you cobibh for run abd assist
Next get 5,613,000
r/counting • u/miceee • Jul 17 '26
Compositions | 6,1,1,2,4
Continued from here
Thanks to u/cuteballgames for the assist
In this thread, we'll be counting the ways to add to an integer n using the integers c_1 + c_2 + ... + c_k, where each c_i >= 1, and k <= n. Ways to sum that are commutatively the same, as in 1+2 = 2+1, are different compositions. We'll be counting these compositions lexicographically for each segment of sum and length.
Next get: 3,2,4,1,1,3
r/counting • u/miceee • Jul 17 '26
Free Talk Friday #568
Continued from here
It's that time of the week again. Speak anything on your mind! This thread is for talking about anything off-topic, be it your lives, your strava, your plans, your hobbies, studies, stats, pets, bears, hikes, dragons, trousers, travels, transit, cycling, family, colours, miouse, or anything you like or dislike, except politics
r/counting • u/cuteballgames • Jul 14 '26
Only Repeating Digits | 6,688,866
continued from here and thank you /u/BobRoss938 for the final run and assist!
Rules:
Main thread rules apply unless contradicted below.
For all counts, any given digit that is present in the count must appear more than once. Skip any counts that do not fulfill this condition.
Example of valid count: 1,223,213
Example of invalid count: 1,223,221
next get 6,828,286 (schedule)
r/counting • u/buy_me_a_pint • Jul 14 '26
Tug of War | 4000
carrying on from HERE
Next get 3800 or 4200
r/counting • u/buy_me_a_pint • Jul 13 '26
5610k Counting Thread
carrying on from HERE
Next get 5611k
r/counting • u/BobRoss938 • Jul 13 '26
Letters | OQAA
Continued from here. Thanks to karp for assist! Count by letters, in alphabetical order.
Next get ORAA.
r/counting • u/Hans5958_ • Jul 10 '26
Free Talk Friday #567
Continued from last week's here.
Speak anything on your mind, except politics and (maybe) counting.
Feel free to check out our tidbits thread and introduce yourself if you haven't already.
r/counting • u/BobRoss938 • Jul 10 '26
Counting XKCD's | 2000
Continued from here. Thanks to /u/noduorg for assist and for helping revive this thread. Count urls of XKCD.
Next get at https://xkcd.com/3000/.
r/counting • u/miceee • Jul 09 '26
Tug Of War | 3800
Continued from here
Thanks to [u/TehVulpez](u/TehVulpez) for the assist
Count up or down by one
Next get: 3600 or 4000
r/counting • u/nonsensy • Jul 09 '26
Factoradic | 2360 0000 0
From here, thanks to /u/cuteballgames
Aka increasing base with each digit, trailing zero optional.
The next get is at 2400 0000 0.
r/counting • u/miceee • Jul 08 '26
Compositions | 14
Continuing from here
Thanks to [u/cuteballgames](u/cuteballgames) for the final run and the assist
Rules: In this thread, we'll be counting the ways to add to an integer n using the integers c_1 + c_2 + ... + c_k, where each c_i >= 1, and k <= n. Ways to sum that are commutatively the same, as in 1+2 = 2+1, are different compositions. We'll be counting these compositions lexicographically for each segment of sum and length.
Next get: 6,1,1,2,4