%I #4 Apr 03 2020 21:54:02
%S 0,0,0,0,1,1,4,41,1981,304496,78322916,27033154065,11934777413049,
%T 6593485023089912,4485517185017734885,3707462300996644966161,
%U 3680029088808704302571244,4341813441626431900011624077,6033239205199253768404631967656,9792722283774379198364367866020815
%N Number of simple 5-regular bipartite graphs with 2n nodes.
%F Euler transform of A006825.
%Y Column k=5 of A008327.
%K nonn
%O 1,7
%A _Andrew Howroyd_, Apr 03 2020