VOOZH about

URL: https://oeis.org/A333116

⇱ A333116 - OEIS

login
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.
4
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.
CROSSREFS
Cf. A331908 (regions), A331909 (n-gons), A333049 (edges), A092866, A332599, A007569.
Sequence in context: A145852 A232198 A232416 * A278278 A280626 A357231
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(6)-a(24) from Lars Blomberg, May 10 2020
STATUS
approved