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A338002
The number of regions inside a 4-pointed star formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
2
56, 816, 6064, 18152, 52088, 100608, 208168, 336840, 579136, 846560, 1310960, 1784888
OFFSET
1,1
COMMENTS
The star consists of a central square surrounded by four equilateral triangles. See the linked images.
CROSSREFS
Cf. A338003 (number of vertices), A331906, A331908, A007678, A092867, A331452.
Sequence in context: A278197 A182866 A008389 * A351410 A219937 A008921
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(8)-a(12) from Lars Blomberg, Apr 08 2021
STATUS
approved