A330913 The number of vertices formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642.

4, 8, 16, 34, 63, 113, 185, 253, 438, 638, 854, 1228, 1641, 1825, 2783, 3543, 4304, 5508, 6748, 7745, 9859, 11773, 13653, 16409, 19178, 21838, 25770, 29648, 32696, 38683, 43899, 48903, 55916, 62784, 69604, 78378, 87175, 95699, 106993, 118093, 128431, 142838

Offset

1,1

Comments

See A333642 for a precise definition of the polygon and images.

Links

Lars Blomberg, Table of n, a(n) for n = 1..100

Crossrefs

Cf. A333642 (regions), A330911 (edges), A330914 (n-gons), A331453, A333026, A006561.

Sequence in context: A073856 A019458 A264166 * A215346 A214035 A040014

Adjacent sequences: A330910 A330911 A330912 * A330914 A330915 A330916

Keyword

nonn

Author

Scott R. Shannon and N. J. A. Sloane, May 02 2020

Extensions

a(21) and beyond from Lars Blomberg, May 03 2020

Status

approved