A306140 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

3, 313, 2787, 40610, 601535, 8151029, 114440831, 1609075139, 22447164273, 314280482738, 4398879870601, 61537268595549, 861131897150473, 12049755639784951, 168605788029197162, 2359272015430288592

Offset

1,1

Comments

Column 5 of A306143.

Links

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

Example

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

Crossrefs

Cf. A306143.

Sequence in context: A316580 A304594 A316380 * A317373 A083974 A135698

Adjacent sequences: A306137 A306138 A306139 * A306141 A306142 A306143

Keyword

nonn

Author

R. H. Hardin, Jun 22 2018

Status

approved