A335553 a(n) is the number of regions formed by n-secting the angles of a pentagon.

1, 10, 11, 60, 131, 90, 276, 310, 326, 510, 706, 580, 981, 1070, 1086, 1390, 1721, 1320, 2136, 2250, 2311, 2730, 3176, 2900, 3746, 3900, 3956, 4530, 5086, 4690, 5821, 5980, 6061, 6760, 7451, 6720, 8286, 8540, 8621, 9420, 10266, 9700, 11241, 11510, 11616, 12560

Offset: 1

Author

Lars Blomberg, Jun 14 2020

Keywords

• nonn

Links

• Lars Blomberg, Table of n, a(n) for n = 1..200
• Lars Blomberg, Illustration for n=3
• Lars Blomberg, Illustration for n=4
• Lars Blomberg, Illustration for n=17
• Lars Blomberg, Illustration for n=18

Crossrefs

Cf. A331929 (n-sected sides, not angles), A335554 (vertices), A335555 (edges), A335556 (ngons).