A316301 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

16, 64, 110, 339, 1519, 5120, 19185, 72289, 268933, 999260, 3734414, 13938869, 52011659, 194106983, 724518526, 2704073894, 10092448889, 37668514694, 140591829599, 524735645048, 1958492581750, 7309762480795, 27282526699864

Offset

1,1

Comments

Column 5 of A316304.

Links

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

Example

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

Crossrefs

Cf. A316304.

Sequence in context: A043193 A043973 A153262 * A072128 A277016 A016802

Adjacent sequences: A316298 A316299 A316300 * A316302 A316303 A316304

Keyword

nonn

Author

R. H. Hardin, Jun 29 2018

Status

approved