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 A006290 M3039 #46 Feb 16 2025 08:32:30 %S A006290 1,3,17,136,2388,80890,5114079,573273505,113095167034,39582550575765, %T A006290 24908445793058442,28560405143495819079,60364410130177223014724, %U A006290 237403933018799958309530349,1750323137355778190158082029500,24333358813699371350715221107464003,640811613278752754485012443963579501421 %N A006290 Number of 3-connected graphs with n nodes. %C A006290 Robinson and Walsh list first 25 terms. %D A006290 R. C. Read and R. J. Wilson, An Atlas of Graphs, Oxford, 1998. %D A006290 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A006290 Andrew Howroyd, <a href="/A006290/b006290.txt">Table of n, a(n) for n = 4..25</a> %H A006290 Steven R. Finch, <a href="https://doi.org/10.1017/9781316997741">Mathematical Constants II</a>, Encyclopedia of Mathematics and Its Applications, Cambridge University Press, Cambridge, 2018. %H A006290 R. W. Robinson, <a href="http://cobweb.cs.uga.edu/~rwr/publications/tables.pdf">Tables</a> %H A006290 R. W. Robinson, <a href="/A002218/a002218_2.pdf">Tables</a> [Local copy, with permission] %H A006290 R. W. Robinson and T. R. S. Walsh, <a href="https://doi.org/10.1006/jctb.1993.1022">Inversion of cycle index sum relations for 2- and 3-connected graphs</a>, J. Combin. Theory Ser. B. 57 (1993), 289-308. %H A006290 T. R. S. Walsh, <a href="https://doi.org/10.1016/0095-8956(82)90072-7">Counting unlabeled three-connected and homeomorphically irreducible two-connected graphs</a>, J. Combin. Theory Ser. B 32 (1982), no. 1, 12-32. %H A006290 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/k-ConnectedGraph.html">k-Connected Graph</a> %H A006290 David Kofoed Wind, <a href="/A006290/a006290.pdf">Connected Graphs with Fewest Spanning Trees</a>, Bachelor Thesis, Spring 2011. %Y A006290 Row sums of A339072. %Y A006290 Cf. A000088, A001349, A002218, A006289, A007112, A338511. %K A006290 nonn,nice %O A006290 4,2 %A A006290 _N. J. A. Sloane_ %E A006290 More terms from Ronald C. Read.