A342056 Number of unrooted 3-connected triangulations of a disk with n nodes.

1, 2, 7, 27, 132, 773, 5017, 34861, 253676, 1903584, 14616442, 114254053, 906266345, 7277665889, 59066524810, 483864411124, 3996427278475, 33250623548406, 278472800696431, 2346089674759665, 19872284655990058, 169155659546689252, 1446375853153588731, 12418636483734071261, 107034910337046043232

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.

The House of Graphs, Planar graphs

Prog

(PARI) A342053AntidiagonalSums(25) \\ See links in A342053 for program.

Crossrefs

Antidiagonal sums of A342053.

Cf. A342052.

Sequence in context: A213226 A058800 A357901 * A363199 A367594 A293031

Adjacent sequences: A342053 A342054 A342055 * A342057 A342058 A342059

Keyword

nonn

Author

Andrew Howroyd, Feb 26 2021

Status

approved