A333116 The number of vertices inside a hexagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.

109, 2761, 16387, 63943, 167071, 357919, 711895, 1283419, 2040187, 3173851, 4909351, 6730795, 9868711, 13101883, 16984963, 23055523, 29896135, 36496711, 47223703, 56703265, 68999605, 84927301, 103692535, 119208667

Offset

1,1

Comments

See the links in A331908 for images of the hexagrams.

Links

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

Index entries for sequences related to stained glass windows

Crossrefs

Cf. A331908 (regions), A331909 (n-gons), A333049 (edges), A092866, A332599, A007569.

Sequence in context: A145852 A232198 A232416 * A278278 A280626 A357231

Adjacent sequences: A333113 A333114 A333115 * A333117 A333118 A333119

Keyword

nonn,more

Author

Scott R. Shannon and N. J. A. Sloane, Mar 08 2020

Extensions

a(6)-a(24) from Lars Blomberg, May 10 2020

Status

approved