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Product of a prime and any number of triangular numbers.
0

%I #2 Mar 31 2012 13:21:56

%S 2,3,5,6,7,9,11,12,13,15,17,18,19,20,21,23,27,29,30,31,33,37,39,41,42,

%T 43,45,47,50,51,53,54,56,57,59,61,63,66,67,69,70,71,72,73,75,78,79,81,

%U 83,84,87,89,90,93,97

%N Product of a prime and any number of triangular numbers.

%e 54=2*t(2)*t(2)*t(2)

%K nonn

%O 1,1

%A _Jon Perry_, Jul 23 2003