A297759 Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.

1, 78, 734, 7081, 109228, 1456855, 18733087, 251641086, 3354939709, 44459037210, 591410913625, 7865974374583, 104544861995486, 1389898494780143, 18479036986992209, 245664832111845278, 3265995303275846454

Offset

1,2

Comments

Column 5 of A297762.

Links

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

R. H. Hardin, Empirical recurrence of order 78

Formula

Empirical recurrence of order 78 (see link above)

Example

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

Crossrefs

Cf. A297762.

Sequence in context: A126994 A220409 A129238 * A147619 A119093 A128951

Adjacent sequences: A297756 A297757 A297758 * A297760 A297761 A297762

Keyword

nonn

Author

R. H. Hardin, Jan 05 2018

Status

approved