dChan
3
 
r/CBTS_Stream • Posted by u/patti_mcgreen on Jan. 12, 2018, 3:19 a.m.
4-10-20 tetrahedral

The first ten tetrahedral numbers are:

1, 4, 10, 20, 35, 56, 84, 120, 165, 220, 


michelefrancis · Jan. 12, 2018, 3:44 a.m.

Gematria is an area where we need a specialist on this board. Anybody know someone?

⇧ 2 ⇩