A335769 a(n) is the number of regions formed by n-secting the angles of an octagon.

1, 8, 25, 104, 321, 80, 617, 624, 745, 1056, 1617, 896, 2233, 2224, 2465, 3024, 3929, 2472, 4809, 4848, 5193, 5944, 7217, 5528, 8305, 8456, 8929, 9856, 11513, 9336, 12849, 13080, 13617, 14816, 16809, 13744, 18417, 18632, 19329, 20728, 23073, 19936, 25001

Offset: 1

Author

Lars Blomberg, Jun 23 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=19
• Lars Blomberg, Illustration for n=20

Crossrefs

Cf. A333075 (n-sected sides, not angles), A335770 (vertices), A335771 (edges), A335772 (ngons).