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 A331155 #27 Oct 04 2023 09:58:07 %S A331155 1,1,1,3,1,10,1,25,15,1,56,105,1,119,409,105 %N A331155 Erroneous version of A008299. %C A331155 Included in accordance with OEIS policy of including published but incorrect sequences to serve as pointers to the correct versions. %D A331155 Haight, Frank Avery. "Handbook of the Poisson distribution," John Wiley, 1967. See pages 6,7, but beware of errors. %K A331155 dead %O A331155 2,4