A298316 Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

5, 13, 9, 63, 119, 243, 1086, 2782, 8509, 31229, 96678, 326277, 1137213, 3778416, 12973520, 44739137, 152068087, 523345877, 1801042403, 6167742173, 21225962235, 73014570280, 250701169712, 862559095665, 2966725424201, 10196566165974

Offset

1,1

Comments

Column 4 of A298320.

Links

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

R. H. Hardin, Empirical recurrence of order 71

Formula

Empirical recurrence of order 71 (see link above)

Example

Some solutions for n=7
..0..1..0..0. .0..1..0..1. .0..1..1..0. .0..1..0..0. .0..0..1..0
..1..0..0..0. .1..0..0..0. .1..0..1..1. .0..1..0..0. .0..0..1..0
..1..1..1..1. .1..1..0..1. .0..0..1..0. .1..1..1..1. .1..0..1..1
..0..1..0..0. .0..1..0..1. .0..1..0..1. .1..1..1..1. .1..0..0..1
..1..1..1..1. .0..1..0..0. .1..0..1..1. .0..1..0..0. .0..0..1..0
..1..0..0..0. .1..1..1..0. .0..0..1..0. .1..1..1..1. .0..0..0..0
..0..1..0..0. .0..1..0..1. .0..0..1..0. .0..1..0..0. .1..0..0..1

Crossrefs

Cf. A298320.

Sequence in context: A064109 A175484 A210694 * A299190 A156682 A089534

Adjacent sequences: A298313 A298314 A298315 * A298317 A298318 A298319

Keyword

nonn

Author

R. H. Hardin, Jan 17 2018

Status

approved