A316929 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 82, 851, 20235, 467377, 10973407, 259460352, 6154985913, 146148278604, 3471990602612, 82499442224779, 1960457573018558, 46588485306165862, 1107148416875362282, 26310891701112728202, 625268175344710762738

Offset

1,2

Comments

Column 5 of A316932.

Links

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

R. H. Hardin, Empirical recurrence of order 89

Formula

Empirical recurrence of order 89 (see link above)

Example

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

Crossrefs

Cf. A316932.

Sequence in context: A305682 A317062 A230394 * A317700 A173356 A083386

Adjacent sequences: A316926 A316927 A316928 * A316930 A316931 A316932

Keyword

nonn

Author

R. H. Hardin, Jul 16 2018

Status

approved