A300927 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

3, 129, 3447, 87561, 2244335, 57594572, 1477281166, 37892542998, 971951600750, 24930755913741, 639478906822565, 16402762675466111, 420734164143854022, 10791915992268202779, 276814817305204046858, 7100355778766419144128

Offset

1,1

Comments

Column 5 of A300930.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 64

Formula

Empirical recurrence of order 64 (see link above)

Example

Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..1..0..0. .0..1..0..0..0. .0..1..0..1..1. .0..0..1..1..1
..0..1..1..1..1. .0..1..1..0..0. .0..1..1..1..0. .0..1..1..1..0
..0..0..1..0..0. .0..0..0..1..0. .0..0..0..1..0. .0..1..0..0..1
..0..1..1..1..1. .1..1..0..1..0. .1..1..1..1..1. .1..1..0..0..1

Crossrefs

Cf. A300930.

Sequence in context: A319222 A300543 A300970 * A123047 A097420 A037119

Adjacent sequences: A300924 A300925 A300926 * A300928 A300929 A300930

Keyword

nonn

Author

R. H. Hardin, Mar 15 2018

Status

approved