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A361362
Number of bicolored cubic graphs on 2n unlabeled vertices.
2
1, 0, 5, 23, 262, 4775, 126026, 4315481, 177939133, 8486268015, 457398466292, 27442206452816, 1812456359735759, 130630783430897459, 10200930403740584232, 857888417749736680977, 77299388952584465682198, 7429004444540543143978901, 758559920648248499878180973, 82006219796827162656265186759, 9357477001574426557631620060473
OFFSET
0,3
COMMENTS
Adjacent vertices may have the same color.
FORMULA
Euler transform of A361403.
CROSSREFS
Row sums of A361361.
Cf. A361403 (connected).
Sequence in context: A156555 A361403 A116652 * A197936 A198029 A072104
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Mar 10 2023
STATUS
approved