cp's OEIS Frontend

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.

A007101 Number of labeled trivalent (or cubic) cyclically 4-connected graphs with 2n nodes.

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%I A007101 M4761 #15 Jul 08 2025 16:59:49
%S A007101 1,10,3360,1753920,1812888000,3158396841600,8496995611104000,
%T A007101 33199738565849856000,180116271096528678912000,
%U A007101 1310903590075375049994240000,12454930569778045924343408640000
%N A007101 Number of labeled trivalent (or cubic) cyclically 4-connected graphs with 2n nodes.
%D A007101 R. W. Robinson, personal communication.
%D A007101 R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1976.
%D A007101 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A007101 R. W. Robinson, <a href="/A007101/b007101.txt">Table of n, a(n) for n = 2..30</a>
%H A007101 N. C. Wormald, <a href="http://dx.doi.org/10.1002/jgt.3190090418">Enumeration of cyclically 4-connected cubic graphs</a>, J. Number Theory 9 (4) (1985) 563, Theorem 4.1.
%K A007101 nonn
%O A007101 2,2
%A A007101 _N. J. A. Sloane_