A333731 Number of simple 5-regular bipartite graphs with 2n nodes.

0, 0, 0, 0, 1, 1, 4, 41, 1981, 304496, 78322916, 27033154065, 11934777413049, 6593485023089912, 4485517185017734885, 3707462300996644966161, 3680029088808704302571244, 4341813441626431900011624077, 6033239205199253768404631967656, 9792722283774379198364367866020815

Offset: 1

Author

Andrew Howroyd, Apr 03 2020

Keywords

• nonn

Crossrefs

Column k=5 of A008327.

Formula

Euler transform of A006825.