A297651 Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.

12, 494, 6838, 131044, 2525244, 46187510, 864944851, 16149058068, 300870617401, 5613564284292, 104698838837111, 1952650753998364, 36420081863348278, 679272850629109385, 12669181880403565080, 236294959020596014510

Offset

1,1

Comments

Column 5 of A297654.

Links

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

R. H. Hardin, Empirical recurrence of order 60

Formula

Empirical recurrence of order 60 (see link above)

Example

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

Crossrefs

Cf. A297654.

Sequence in context: A229634 A196704 A175322 * A296596 A196853 A196947

Adjacent sequences: A297648 A297649 A297650 * A297652 A297653 A297654

Keyword

nonn

Author

R. H. Hardin, Jan 02 2018

Status

approved