A284450 Number of n X 3 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.

1, 0, 102, 250, 5253, 16478, 278315, 1019120, 15188955, 62846854, 850526529, 3891052774, 48586797398, 241642747938, 2818541243728, 15034216343154, 165507316465985, 936470483789652, 9815405179117090, 58379693308010828

Offset: 1

Author

R. H. Hardin, Mar 27 2017

Keywords

• nonn

Comments

Column 3 of A284455.

Examples

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

Links

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

Crossrefs

Cf. A284455.