A299671 Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

8, 88, 372, 2009, 12076, 69614, 398314, 2305246, 13349305, 77225419, 446916111, 2587221606, 14977823434, 86710581094, 502009221965, 2906422822781, 16827090550319, 97423052002120, 564048011413868, 3265662577740412

Offset

1,1

Comments

Column 4 of A299675.

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..1..0. .0..1..0..0. .0..0..0..0. .0..0..1..1. .0..1..0..0
..0..0..0..1. .0..0..1..1. .0..0..0..0. .1..0..1..1. .1..1..0..0
..1..0..0..0. .1..1..1..1. .1..1..0..0. .1..1..1..1. .1..0..0..0
..0..0..0..1. .0..1..1..1. .1..0..1..1. .0..1..1..1. .0..0..0..0
..1..1..0..1. .0..1..0..0. .0..1..0..0. .1..0..0..0. .0..1..1..1

Crossrefs

Cf. A299675.

Sequence in context: A299341 A299848 A299004 * A299749 A300263 A367278

Adjacent sequences: A299668 A299669 A299670 * A299672 A299673 A299674

Keyword

nonn

Author

R. H. Hardin, Feb 16 2018

Status

approved