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 A358107 #17 Jan 02 2023 15:25:24 %S A358107 1,1,2,6,26,119,626,3495,20688,127339,810418,5293790,35351571, %T A358107 240478715,1662071181,11646620758,82601643511,592110678762, %U A358107 4284830131865,31271691087861,229980550743717,1703097703162249,12691879796699486,95129358337729084,716801612475691847 %N A358107 Number of unlabeled trees covering 2n nodes, n+1 of which are leaves. %H A358107 Andrew Howroyd, <a href="/A358107/b358107.txt">Table of n, a(n) for n = 1..100</a> %H A358107 Gus Wiseman, <a href="/A358107/a358107_1.png">The a(4) = 6 trees covering 8 nodes, 5 of which are leaves</a>. %Y A358107 Central column of A055290. %Y A358107 The labeled version is the central column of A055314. %Y A358107 For n leaves we have A359398. %Y A358107 A000272 counts trees, bisection A163395, unlabeled A000055. %Y A358107 A001187 counts connected graphs, unlabeled A001349. %Y A358107 A006125 counts graphs, unlabeled A000088. %Y A358107 A006129 counts covering graphs, unlabeled A002494. %Y A358107 A014068 counts graphs with n vertices and n-1 edges, unordered A001433. %Y A358107 Cf. A185650, A358732. %K A358107 nonn %O A358107 1,3 %A A358107 _Gus Wiseman_, Dec 02 2022 %E A358107 Terms a(11) and beyond from _Andrew Howroyd_, Jan 01 2023