%I #4 Oct 02 2013 15:57:58
%S 3,6,9,12,15,18,22,25,28,31,34,37,41,43,44,46,49,50,58,59,61,64,65,67,
%T 71,74,75,77,80,86,89,90,92,95,96,98,101,105,108,111,113,114,116,122,
%U 123,125,126,128,129,131,132,134,139,141,144,147,150,154,156
%N Let f(n) = A104246(n) be the minimal number of nonzero tetrahedral numbers that add to n; sequence gives numbers n for which f(n) = 3.
%Y Cf. A000292, A104246, A102795, etc.
%K nonn
%O 1,1
%A _Jud McCranie_, Feb 26 2005