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A341855
Number of nonseparable trivalent maps with n nodes up to orientation preserving automorphisms.
2
1, 2, 4, 20, 93, 554, 3554, 24256, 171676, 1255194, 9399396, 71837656, 558420702, 4404369524, 35176227916, 284034186632, 2315677128324, 19041443086870, 157775390173844, 1316314747361426, 11050281929647605, 93289306725561418, 791625463473512860, 6749144798353446552
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OFFSET
3,2
LINKS
Table of n, a(n) for n=3..26.
CROSSREFS
Antidiagonal sums of A262586.
Cf. A005027, A005028.
Sequence in context: A188326 A158094 A108879 * A337038 A058006 A153229
Adjacent sequences: A341852 A341853 A341854 * A341856 A341857 A341858
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Feb 22 2021
STATUS
approved

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Last modified September 29 19:20 EDT 2024. Contains 376324 sequences.
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