A299004 Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

8, 88, 372, 1977, 11553, 63472, 350339, 1960512, 10931666, 60915771, 339863732, 1896117726, 10577509015, 59011882438, 329233976176, 1836824343961, 10247854122236, 57174149141128, 318982362376709, 1779646767539938

Offset

1,1

Comments

Column 4 of A299008.

Links

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

R. H. Hardin, Empirical recurrence of order 65

Formula

Empirical recurrence of order 65 (see link above)

Example

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

Crossrefs

Cf. A299008.

Sequence in context: A299085 A299341 A299848 * A299671 A299749 A300263

Adjacent sequences: A299001 A299002 A299003 * A299005 A299006 A299007

Keyword

nonn

Author

R. H. Hardin, Jan 31 2018

Status

approved