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A341855 Number of nonseparable trivalent maps with n nodes up to orientation preserving automorphisms. 1
1, 2, 4, 20, 93, 554, 3554, 24256, 171676, 1255194, 9399396, 71837656, 558420702, 4404369524, 35176227916, 284034186632, 2315677128324, 19041443086870, 157775390173844, 1316314747361426, 11050281929647605, 93289306725561418, 791625463473512860, 6749144798353446552 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,2
LINKS
CROSSREFS
Antidiagonal sums of A262586.
Sequence in context: A188326 A158094 A108879 * A337038 A058006 A153229
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Feb 22 2021
STATUS
approved

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Last modified May 23 10:34 EDT 2024. Contains 372760 sequences. (Running on oeis4.)