A302378 Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

3, 161, 2886, 56541, 1089035, 20993054, 404225195, 7787623959, 150008013842, 2889619130491, 55662670608009, 1072229459666190, 20654344779041771, 397864432000232871, 7664058367627889686, 147632676645411073113

Offset

1,1

Comments

Column 5 of A302381.

Links

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

R. H. Hardin, Empirical recurrence of order 84

Formula

Empirical recurrence of order 84 (see link above)

Example

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

Crossrefs

Cf. A302381.

Sequence in context: A108159 A201429 A067322 * A303099 A302950 A173128

Adjacent sequences: A302375 A302376 A302377 * A302379 A302380 A302381

Keyword

nonn

Author

R. H. Hardin, Apr 06 2018

Status

approved