A332429 The number of edges on a nonagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.

288, 5148, 33291, 108252, 283464, 591723, 1133928, 1941786, 3166605, 4837824, 7170120, 10164258, 14124447, 19017180, 25206777, 32659191, 41826366, 52595622, 65549880, 80507142, 98143200, 118271898, 141655707

Offset

1,1

Comments

See the links in A332421 for images of the nonagons.

Links

Table of n, a(n) for n=1..23.

Crossrefs

Cf. A332421 (regions), A332427 (n-gons), A332428 (vertices), A330845, A274586, A332600, A331765.

Sequence in context: A033692 A182026 A229506 * A232340 A290028 A330817

Adjacent sequences: A332426 A332427 A332428 * A332430 A332431 A332432

Keyword

nonn,more

Author

Scott R. Shannon and N. J. A. Sloane, Mar 09 2020

Extensions

a(6)-a(23) from Lars Blomberg, May 16 2020

Status

approved