A024809 - OEIS

%I #9 Aug 28 2024 10:27:04

%S 1,4,13,26,44,69,98,137,179,227,278,338,402,470,541,622,707,796,891,

%T 991,1097,1206,1320,1443,1569,1697,1834,1974,2120,2269,2423,2585,2752,

%U 2923,3099,3280,3467,3658,3853,4056,4261,4473,4689,4911,5136,5366,5602,5844

%N a(n) = position of n^2 + (n+1)^2 + (n+2)^2 in A004432.

%K nonn

%O 1,2

%A _Clark Kimberling_

%E Corrected and extended by _David W. Wilson_, May 15 1997