This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A024970 #11 Aug 28 2024 10:27:00 %S A024970 1,4,13,27,51,86,132,194,263,364,475,608,763,950,1166,1402,1675,1976, %T A024970 2326,2683,3114,3571,4057,4579,5150,5782,6441,7185,7943,8797,9680, %U A024970 10644,11673,12706,13875,15029,16321,17650,19074,20544,22082,23690,25378,27170 %N A024970 a(n) = position of 3*n^3 in A003072. %Y A024970 Cf. A003072. %K A024970 nonn %O A024970 1,2 %A A024970 _Clark Kimberling_ %E A024970 Corrected and extended by _David W. Wilson_, May 15 1997