%I #3 Mar 30 2012 18:56:00
%S 6,15,29,54,88,139,203,271,369,479,615,770,960,1173,1415,1688,1990,
%T 2337,2692,3139,3585,4073,4592,5171,5796,6451,7198,7967,8818,9697,
%U 10667,11696,12729,13897,15055,16341,17672,19098,20567,22109,23721,25411,27191,29016
%N a(n) = position of n^3 + (n+1)^3 + (n+2)^3 in A003072.
%K nonn
%O 1,1
%A _Clark Kimberling_