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A333118 The number of edges inside a pentagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. 3
65, 1965, 14100, 49760, 130235, 268900, 522770, 911425, 1474680, 2276820, 3354695, 4785575, 6665240, 8973795, 11903415, 15446945, 19825715, 24850460, 31025390, 38221130, 46557865, 56092005, 67123385, 79765335, 94249750, 110346520, 128289075, 148525930, 171374335, 196206590 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
See the links in A331906 for images of the pentagrams.
LINKS
CROSSREFS
Cf. A331906 (regions), A331907 (n-gons), A333117 (vertices), A274586, A332600, A331765.
Sequence in context: A197088 A031604 A002502 * A095027 A017781 A017728
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(7)-a(30) from Lars Blomberg, May 06 2020
STATUS
approved

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Last modified March 4 09:35 EST 2024. Contains 370528 sequences. (Running on oeis4.)