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Number of isomorphism classes of connected 5-regular multigraphs of order 2n, loops allowed.
9

%I #8 Mar 22 2020 02:00:10

%S 3,26,639,40264,5846105,1620621150,752480161278,538934691750368,

%T 562620407713724992,820458681175954269942,1616087981640640784235446,

%U 4183688192689449962777539596,13914233045360143936837907106395,58319096569220501055727735345999221

%N Number of isomorphism classes of connected 5-regular multigraphs of order 2n, loops allowed.

%C Initial terms computed using software at http://users.cecs.anu.edu.au/~bdm/nauty/

%F Inverse Euler transform of A129431. - _Andrew Howroyd_, Mar 19 2020

%Y Column k=5 of A333397.

%Y Cf. A129431, A129419, A005967, A085549, A129432, A129434, A129436.

%K nonn

%O 1,1

%A _Brendan McKay_, Apr 15 2007

%E a(8)-a(14) added by _Andrew Howroyd_, Mar 21 2020