A361409 Number of bicolored cubic graphs on 2n unlabeled vertices with n vertices of each color.

1, 0, 1, 5, 66, 1071, 27606, 887305, 34583357, 1562797351, 80177945542, 4597212665432, 291214532031215, 20193430937073303, 1521240318892230748, 123711268485285686123, 10801367759750192440520, 1007762402877770768660697, 100058924666668698411972015, 10533938778032068908299390227, 1172080056205294525370971027435

Offset: 0

Author

Andrew Howroyd, Mar 11 2023

Keywords

• nonn

Comments

Adjacent vertices may have the same color.

Crossrefs

Central coefficients of A361361.

Cf. A005638, A361406, A361410, A361411.