A333049 - OEIS

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A333049

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

3

276, 6348, 36810, 137802, 356538, 760134, 1494702, 2668458, 4254294, 6597690, 10105662, 13949346, 20222142, 26925654, 35032086, 47139258, 60947286, 74831682, 96101142, 115904808, 141052560, 172931484, 210293622, 243217686

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

See the links in A331908 for images of the hexagrams.

LINKS

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

CROSSREFS

Cf. A331908 (regions), A331909 (n-gons), A333116 (vertices),

A274586, A332600, A331765.

Sequence in context: A028522 A007246 A107080 * A297525 A169976 A297755

Adjacent sequences: A333046 A333047 A333048 * A333050 A333051 A333052

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