What are the next two numbers in the sequence?
1, 4, 9, 14, 21, 30, 41, 54, __, __

The first three numbers suggest squares, but then we get 14 and 21 instead of 16 and 25... unless we are in base 12, and everything works out fine, so the sequence follows 69 and 84.

Posted by Federico Kereki on 2004-03-08 09:07:45