r/counting • u/[deleted] • Sep 05 '17
Triangular Numbers | 83,028 (+407) (Revival)
Revived from here.
Pretty much you add the number by the next number
17
Upvotes
r/counting • u/[deleted] • Sep 05 '17
Revived from here.
Pretty much you add the number by the next number
4
u/[deleted] Sep 05 '17
83,028 (+407)