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 A178271 #5 Jul 22 2025 08:12:45 %S A178271 0,0,0,0,0,1400,16520,103040,455040,1602000,4840032,12815552,31069112, %T A178271 68954312,144449440,284461680,537258960,966579120 %N A178271 Number of collinear point 6-tuples in an n X n .. X n 4-dimensional cubical grid. %Y A178271 Three collinear points in an n X n grid A000938 ; n X n X n grid A157882 %K A178271 nonn %O A178271 1,6 %A A178271 _R. H. Hardin_, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010