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 A322774 #10 Aug 06 2021 15:00:05 %S A322774 40,172,801,4025,21709,124997,764538,4945866,33710579,241273791, %T A322774 1807949285,14146621349,115316563400,977216138500,8592652709041, %U A322774 78263082518169,737228862573509,7172071557558805,71964172085006666,743866850349092130,7912230538914051723 %N A322774 Column 3 of array in A322770. %H A322774 Alois P. Heinz, <a href="/A322774/b322774.txt">Table of n, a(n) for n = 0..570</a> %Y A322774 Cf. A322768, A322770. %Y A322774 Column k=3 of A346517. %K A322774 nonn %O A322774 0,1 %A A322774 _N. J. A. Sloane_, Dec 30 2018