A299571 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 23, 47, 237, 766, 3324, 15186, 56870, 234074, 1011095, 4133704, 17000454, 71053058, 295453260, 1223130039, 5077714327, 21113301094, 87637341300, 363724250504, 1510870009169, 6274481387942, 26050726753999, 108178878898716

Offset

1,1

Comments

Column 5 of A299574.

Links

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

Example

Some solutions for n=7
..0..0..1..0..1. .0..0..1..0..0. .0..0..1..0..0. .0..1..0..0..1
..1..0..1..0..1. .1..0..1..0..1. .1..0..1..1..0. .0..0..1..1..0
..1..1..1..1..0. .1..0..0..0..1. .1..1..1..1..1. .0..0..1..1..1
..1..1..1..0..1. .1..0..0..0..1. .1..1..1..1..1. .0..0..1..1..1
..1..1..1..1..0. .1..0..0..0..1. .1..1..1..1..1. .1..0..1..1..1
..1..0..1..0..1. .1..0..0..0..1. .0..1..1..1..0. .1..1..1..0..1
..0..0..1..0..1. .0..1..1..1..0. .1..0..0..0..1. .0..0..1..0..0

Crossrefs

Cf. A299574.

Sequence in context: A297956 A298772 A298579 * A032003 A031907 A181422

Adjacent sequences: A299568 A299569 A299570 * A299572 A299573 A299574

Keyword

nonn

Author

R. H. Hardin, Feb 13 2018

Status

approved