A295649 Number of n X 5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 3 or 4 1's.

24, 327, 4993, 74335, 1117226, 16755140, 251412699, 3772052117, 56595784982, 849153242275, 12740583576940, 191157920536447, 2868107080049542, 43032680678386242, 645656382310176617, 9687338917285759511

Offset

1,1

Comments

Column 5 of A295652.

Links

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

Example

Some solutions for n=4
..0..1..0..1..1. .0..1..0..0..0. .0..0..0..1..0. .0..0..0..0..0
..1..1..0..0..0. .1..0..0..0..1. .1..0..0..0..0. .0..0..0..0..0
..0..1..1..0..1. .0..0..0..0..0. .1..0..0..1..0. .0..0..1..0..1
..0..1..0..1..0. .0..0..0..0..1. .0..1..1..0..1. .1..0..0..0..0

Crossrefs

Cf. A295652.

Sequence in context: A138453 A004317 A295250 * A188779 A267838 A045543

Adjacent sequences: A295646 A295647 A295648 * A295650 A295651 A295652

Keyword

nonn

Author

R. H. Hardin, Nov 25 2017

Status

approved