A302956 Number of 5Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 111, 3815, 80589, 2104533, 58679318, 1596912288, 43234526916, 1172920595173, 31835504010739, 863919963653140, 23443241891419774, 636163926665744028, 17263226518198169813, 468461872965045734740, 12712366216384150285383

Offset: 1

Author

R. H. Hardin, Apr 16 2018

Keywords

• nonn

Comments

Row 5 of A302953.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 73

Crossrefs

Cf. A302953.

Formula

Empirical recurrence of order 73 (see link above)