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A333075
The number of regions inside an octagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
10
80, 1488, 9312, 31552, 83432, 174816, 339816, 584176, 953416, 1463936, 2173976, 3074784, 4294080, 5790816, 7664880, 9952944, 12757088, 16036096, 20013696, 24577760, 29973528, 36161472, 43314312, 51334672
OFFSET
1,1
COMMENTS
The terms are from numeric computation - no formula for a(n) is currently known.
CROSSREFS
Cf. A333076 (n-gons), A333109 (vertices), A333110 (edges), A007678, A092867, A331452, A331931.
Sequence in context: A204476 A151603 A199533 * A323962 A296189 A060623
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(7)-a(24) from Lars Blomberg, May 14 2020
STATUS
approved