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A000843 Number of quartic bicolored graphs on n unlabeled nodes admitting an automorphism exchanging the colors. 2
0, 0, 0, 1, 1, 4, 12, 66, 433, 3442, 30404, 294951, 3093770, 34846185, 419020738, 5355289843, 72466668921, 1034818990771, 15548633703424, 245182764121059, 4047990858838185, 69826392559499108, 1256005988628521464, 23517396850332614602, 457623646061902648705 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
LINKS
CROSSREFS
Column k=4 of A333159.
Sequence in context: A275527 A222612 A339134 * A369284 A358409 A180386
KEYWORD
nonn
AUTHOR
Brendan McKay and Eric Rogoyski
EXTENSIONS
a(11)-a(25) from Andrew Howroyd, Mar 10 2020
STATUS
approved

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Last modified July 21 06:08 EDT 2024. Contains 374463 sequences. (Running on oeis4.)