A341926 Number of 3-connected triangulations of a hexagon up to orientation-preserving isomorphisms with n interior nodes.

1, 3, 28, 242, 2039, 17138, 142802, 1188412, 9898491, 82665138, 692726420, 5827533378, 49221189621, 417412172800, 3553723666154, 30370156995496, 260485323338444, 2241897876406419, 19358310778238774, 167672728538631224, 1456558329587916711, 12688039161618156484

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..500

Crossrefs

Column k=6 of A341923.

Cf. A342055.

Sequence in context: A094296 A172241 A321438 * A323959 A321385 A037777

Adjacent sequences: A341923 A341924 A341925 * A341927 A341928 A341929

Keyword

nonn

Author

Andrew Howroyd, Feb 26 2021

Status

approved