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 A361585 #5 Mar 16 2023 19:46:28 %S A361585 1,0,1,1,8,28,736,17879,1568614,196581247,62857465075,34431266945361, %T A361585 42146672798547398,95881304594606248756,459546334152150732106700, %U A361585 4253461062245855670436620669,80700118619568448244440535541825,3011390106783578987361705575335328331 %N A361585 Number of digraphs on n unlabeled nodes whose strongly connected components are directed cycles. %o A361585 (PARI) A361585seq(16) \\ See PARI link in A350794 for program code. %Y A361585 Cf. A350794, A361583, A361584 (also single vertex components). %K A361585 nonn %O A361585 0,5 %A A361585 _Andrew Howroyd_, Mar 16 2023