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 A178257 #6 Jul 22 2025 08:11:02 %S A178257 0,0,0,0,12,88,364,1120,2876,6432,13116,24640,43800,73656,119160, %T A178257 185616,281064,413008,594888,836784,1157812,1573912,2109844,2784608, %U A178257 3638980,4693888,5996612,7583488,9514336,11822904,14603264,17886272,21778080 %N A178257 Number of collinear point 5-tuples in an n X n cubical grid. %H A178257 R. H. Hardin, <a href="/A178257/b178257.txt">Table of n, a(n) for n=1..41</a> %Y A178257 Three collinear points in an n X n grid A000938 ; n X n X n grid A157882 %K A178257 nonn %O A178257 1,5 %A A178257 _R. H. Hardin_, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010