A283039 Number of n X 5 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

5, 256, 5065, 94368, 1604067, 26180826, 414085368, 6406597648, 97480211225, 1463896864692, 21753273510360, 320461563276470, 4686814034042643, 68124911104620870, 984999389958209910, 14176505420268232960, 203212970311422645415, 2902589960282552892838, 41327736536350218694304

Offset: 1

Author

R. H. Hardin, Feb 27 2017

Keywords

• nonn
• changed

Examples

			Some solutions for n=4:
..0..0..0..1..0. .0..1..0..0..1. .1..0..1..1..0. .0..0..1..0..1
..0..0..1..0..0. .0..0..0..0..0. .1..0..0..0..1. .1..0..0..0..1
..0..1..0..0..1. .1..0..0..1..1. .1..0..0..0..0. .0..0..0..1..0
..0..1..1..0..0. .0..0..0..0..1. .0..0..0..0..1. .0..1..0..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 72

Crossrefs

Column 5 of A283042.

Formula

Empirical recurrence of order 72 (see link above).