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 A338591 #7 Nov 09 2020 00:06:43 %S A338591 201,210,201,195,204,183,201,186,231,183,204,183,186,201,179,165,195, %T A338591 183,168,191,186,169,183,199,175,209,194,231,164,204,181,183,168,178, %U A338591 169,173,175,191,179,181,199,167,194,169,173,166,167,162,183,174,161,178,186 %N A338591 Denominators y of resistance values R=x/y that can be obtained by a network of at most 11 one-ohm resistors such that a network of more than 11 one-ohm resistors is needed to obtain the resistance y/x. Numerators are in A338581. %H A338591 Hugo Pfoertner, <a href="/A338591/b338591.txt">Table of n, a(n) for n = 1..172</a> %Y A338591 Cf. A180414, A338591, A338601, A338602. %K A338591 nonn,frac,fini,full %O A338591 1,1 %A A338591 _Hugo Pfoertner_, Nov 08 2020