A342052 Number of 3-connected triangulations of a disk with n nodes up to orientation-preserving isomorphisms.

1, 2, 8, 37, 213, 1386, 9524, 68057, 501858, 3788747, 29170667, 228295618, 1811802818, 14552804492, 118124257451, 967698049455, 7992746427963, 66500865364037, 556944249243331, 4692174542007030, 39744552170122779, 338311257783873501, 2892751486485359650

Offset

4,2

Links

Andrew Howroyd, Table of n, a(n) for n = 4..100

G. Brinkmann and B. D. McKay, Fast generation of planar graphs (expanded edition), Table 27, Column d'1.

Prog

(PARI) A341923AntidiagonalSums(25) \\ See links in A342053 for program.

Crossrefs

Antidiagonal sums of A341923.

Cf. A342053, A342056.

Sequence in context: A289541 A047729 A020076 * A317873 A289316 A020130

Adjacent sequences: A342049 A342050 A342051 * A342053 A342054 A342055

Keyword

nonn

Author

Andrew Howroyd, Feb 26 2021

Status

approved