A316737 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

3, 70, 210, 410, 4956, 25047, 75856, 491644, 2699059, 11179338, 58763909, 311368010, 1461336648, 7338344526, 37672028307, 184684418326, 920506468813, 4650553597518, 23121920630552, 115283798061892, 578484724524505

Offset

1,1

Comments

Column 5 of A316740.

Links

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

R. H. Hardin, Empirical recurrence of order 93

Formula

Empirical recurrence of order 93 (see link above)

Example

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

Crossrefs

Cf. A316740.

Sequence in context: A305486 A132793 A305086 * A061173 A156598 A082942

Adjacent sequences: A316734 A316735 A316736 * A316738 A316739 A316740

Keyword

nonn

Author

R. H. Hardin, Jul 11 2018

Status

approved