A302262 Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 384, 3818, 40296, 429854, 4608075, 49315068, 527911860, 5651844495, 60512022539, 647867830591, 6936433466124, 74265480772198, 795130321189515, 8513145805873382, 91146924218701992, 975874666111418347

Offset: 1

Author

R. H. Hardin, Apr 04 2018

Keywords

• nonn

Comments

Column 5 of A302265.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 70

Crossrefs

Cf. A302265.

Formula

Empirical recurrence of order 70 (see link above)