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A335772 Irregular table read by rows: n-sect the angles of a octagon. Then T(n,k) = number of k-sided polygons in that figure for k >= 3. 4
0, 0, 0, 0, 0, 1, 8, 16, 8, 0, 0, 0, 1, 64, 32, 8, 112, 160, 24, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 56, 24, 224, 272, 72, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 304, 176, 136, 8, 336, 224, 104, 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 496, 320, 192, 40, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

For n<=200 no polygon has more than 16 edges.

See A335769 for illustrations.

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..2113 (the first 200 rows)

EXAMPLE

The table begins

0, 0, 0, 0, 0, 1;

8;

16, 8, 0, 0, 0, 1;

64, 32, 8;

112, 160, 24, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;

56, 24;

224, 272, 72, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;

304, 176, 136, 8;

336, 224, 104, 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;

496, 320, 192, 40, 8;

CROSSREFS

Cf. A333076 (n-sected sides, not angles), A335769 (regions), A335770 (vertices), A335771 (edges).

Sequence in context: A073926 A073925 A053321 * A299214 A174256 A037239

Adjacent sequences:  A335769 A335770 A335771 * A335773 A335774 A335775

KEYWORD

nonn,tabf

AUTHOR

Lars Blomberg, Jun 23 2020

STATUS

approved

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Last modified June 25 09:45 EDT 2021. Contains 345453 sequences. (Running on oeis4.)