A303687 Number of nX5 0..1 arrays with every element unequal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.

0, 61, 27, 343, 349, 2809, 4619, 29475, 59695, 312565, 749915, 3414709, 9159379, 37886863, 109856087, 425475373, 1300509341, 4819052399, 15264319545, 54916710773, 178135150965, 628466577459, 2071027274837, 7212819961559

Offset

1,2

Comments

Column 5 of A303690.

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..0..1..0..1. .0..1..1..0..1. .0..1..1..0..1. .0..1..0..0..1
..1..1..0..0..1. .1..0..1..1..0. .0..1..1..0..0. .0..1..1..0..0
..0..1..1..0..0. .0..0..0..1..1. .1..1..0..0..1. .1..0..1..1..0
..0..1..1..0..1. .1..0..0..0..1. .0..1..0..0..1. .0..0..0..1..1
..1..0..0..1..0. .0..1..0..1..0. .1..0..1..1..0. .1..0..1..0..0

Crossrefs

Cf. A303690.

Sequence in context: A002108 A087409 A199749 * A033381 A204748 A276471

Adjacent sequences: A303684 A303685 A303686 * A303688 A303689 A303690

Keyword

nonn

Author

R. H. Hardin, Apr 28 2018

Status

approved