A317820 Number of nX5 0..1 arrays with every element unequal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

3, 160, 356, 2726, 8556, 47374, 179111, 878802, 3604079, 16657873, 71153802, 320111818, 1390832362, 6188854830, 27092156914, 119925512941, 526911251983, 2326470845881, 10239421120031, 45158496956400, 198899068210330

Offset

1,1

Comments

Column 5 of A317823.

Links

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

R. H. Hardin, Empirical recurrence of order 94

Formula

Empirical recurrence of order 94 (see link above)

Example

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

Crossrefs

Cf. A317823.

Sequence in context: A048797 A281799 A163320 * A318427 A318095 A108159

Adjacent sequences: A317817 A317818 A317819 * A317821 A317822 A317823

Keyword

nonn

Author

R. H. Hardin, Aug 07 2018

Status

approved