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 A380627 #6 Jan 29 2025 21:31:04 %S A380627 1,29,44106,549530780,20295421909475,1648575609240648557, %T A380627 249793950749168438672432,63401746172946552016801544036, %U A380627 24987461004098373175802500801970565,14453024762638492834399423828614955417596,11746112443686354689351672116979783313870949792 %N A380627 Number of sensed 5-regular combinatorial maps with 2n vertices. %C A380627 There are no 5-regular combinatorial maps with an odd number of vertices. %H A380627 Andrew Howroyd, <a href="/A380627/b380627.txt">Table of n, a(n) for n = 0..100</a> %Y A380627 With interspersed zeros column 5 of A380626. %Y A380627 Cf. A380623 (rooted). %K A380627 nonn %O A380627 0,2 %A A380627 _Andrew Howroyd_, Jan 29 2025