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 A091609 #7 Mar 25 2022 18:22:16 %S A091609 1,0,1,1,2,2,5,5,8,10,15,18,27,32,45,56,75,92,123,150,195,240,306,374, %T A091609 473,575,718,873,1078,1304,1602,1928,2349,2821,3414,4083,4917,5857, %U A091609 7016,8334,9934,11758,13963,16472,19480,22918,27003,31673,37200,43509 %N A091609 Column 6 of triangle A091602. %H A091609 Alois P. Heinz, <a href="/A091609/b091609.txt">Table of n, a(n) for n = 6..1000</a> %Y A091609 Cf. A091602. %K A091609 nonn %O A091609 6,5 %A A091609 _Christian G. Bower_, Jan 23 2004