A341921 Number of simple strong triangulations of a fixed hexagon with n interior nodes.

1, 9, 50, 254, 1287, 6630, 34846, 186714, 1018095, 5638035, 31651992, 179850344, 1032901028, 5988670002, 35017696806, 206326044386, 1224068679855, 7307391855855, 43871253636210, 264755875041630, 1605357997312335, 9776732655285960, 59781214452500424, 366905787075963864

Offset: 1

Author

Andrew Howroyd, Feb 24 2021

Keywords

• nonn

Links

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

Crossrefs

Row m=3 of A210664.

Cf. A341918.

Programs

PARI

R(25,3) \\ R defined in A210664.