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 A152179 #7 Dec 12 2023 09:35:18 %S A152179 8,2,7,5,5,7,2,8,7,8,2,7,5,5,7,2,8,7,8,2,7,5,5,7,2,8,7,8,2,7,5,5,7,2, %T A152179 8,7,8,2,7,5,5,7,2,8,7,8,2,7,5,5,7,2,8,7 %N A152179 (n^2-2=A008865) mod 9. Period 9: repeat 8,2,7,5,5,7,2,8,7. %K A152179 nonn %O A152179 0,1 %A A152179 _Paul Curtz_, Nov 28 2008