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%I #10 Mar 22 2020 02:00:13
%S 4,91,12398,8530044,20068725095,122563246940846,1657847267734501346,
%T 44557979504639651662163,2193071655191529316254072193,
%U 185380797361862371952777763438426
%N Number of isomorphism classes of connected 7-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 A129435. - _Andrew Howroyd_, Mar 19 2020
%Y Column k=7 of A333397.
%Y Cf. A129435, A129423, A005967, A085549, A129430, A129432, A129436.
%K nonn
%O 1,1
%A _Brendan McKay_, Apr 15 2007
%E a(6)-a(10) added by _Andrew Howroyd_, Mar 21 2020
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