|
%I M0352 #17 Jan 10 2018 16:10:35
%S 1,1,2,2,5,10,45,284,3960,110356,6153615,640014800,120777999811,
%T 41158185726269,25486682538903526,28943747337743989421,
%U 60828392582465943631269,238439312273287947102629832
%N Number of n-node graphs without nodes of degree 2.
%D R. W. Robinson, personal communication.
%D R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1978.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H R. W. Robinson, <a href="/A005637/b005637.txt">Table of n, a(n) for n = 0..28</a>
%H R. W. Robinson, <a href="/A005636/a005636.pdf">Cubic graphs (notes)</a>
%K nonn
%O 0,3
%A _N. J. A. Sloane_.
|
