A359619 - OEIS

A359619

Irregular table read by rows: T(n,k) is the number of k-gons, k>=1, after n iterations of constructing circles from all current vertices using only a compass, starting with one vertex. See the Comments.

0, 1, 0, 0, 2, 1, 0, 1, 16, 4, 0, 16, 2470, 3599, 902, 168, 14

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,5

COMMENTS

See A359569 and A359570 for further details and images.

LINKS

Table of n, a(n) for n=1..17.

FORMULA

Sum of row n = A359570(n);

EXAMPLE

The table begins:

0, 0, 2, 1;

0, 1, 16, 4;

0, 16, 2470, 3599, 902, 168, 14;

CROSSREFS

Cf. A359569 (vertices), A359570 (regions), A359571 (edges), A359258, A359061, A359009.

Sequence in context: A331278 A266632 A062154 * A334159 A326474 A266886

Adjacent sequences: A359616 A359617 A359618 * A359620 A359621 A359622

KEYWORD

nonn,more,hard,tabf

AUTHOR

Scott R. Shannon, Jan 07 2023

STATUS

approved