A333110 The number of edges on an octagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.

136, 2632, 17728, 60672, 163776, 341920, 673112, 1155144, 1892528, 2905088, 4327912, 6104696, 8557008, 11532288, 15271624, 19829528, 25447640, 31957872, 39935984, 49008392, 59807600, 72151536, 86465832, 102403360

Offset

1,1

Comments

See the links in A333075 for images of the octagons.

Links

Table of n, a(n) for n=1..24.

Crossrefs

Cf. A333075 (regions), A333076 (n-gons), A333109 (vertices), A330845, A274586 , A332600, A331765.

Sequence in context: A249985 A072897 A254703 * A250424 A251940 A071231

Adjacent sequences: A333107 A333108 A333109 * A333111 A333112 A333113

Keyword

nonn,more

Author

Scott R. Shannon and N. J. A. Sloane, Mar 07 2020

Extensions

a(7)-a(24) from Lars Blomberg, May 14 2020

Status

approved