A284228 Number of 7 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

64, 2719, 170155, 19371893, 2058141264, 232036495984, 26772321109067, 3148948157013672, 375099683101859897, 45101225320947864321, 5461569534638135452419, 665104722603120565892383

Offset: 1

Author

R. H. Hardin, Mar 23 2017

Keywords

• nonn

Comments

Row 7 of A284222.

Examples

			Some solutions for n=3
..0..0..0. .0..0..0. .0..1..0. .0..0..0. .0..0..0. .0..1..0. .0..0..0
..1..1..0. .1..1..0. .0..1..0. .0..1..1. .1..0..0. .0..0..1. .1..0..1
..0..1..1. .1..1..1. .0..1..0. .1..1..1. .1..0..1. .1..0..0. .1..0..0
..1..1..1. .0..0..0. .1..0..1. .1..1..0. .1..1..0. .1..1..1. .1..0..1
..0..1..0. .1..1..1. .1..0..1. .0..0..1. .1..0..0. .1..0..1. .0..1..1
..1..0..1. .1..1..0. .1..1..1. .1..0..1. .0..1..1. .0..0..1. .0..0..0
..0..0..1. .1..0..0. .0..1..0. .1..1..0. .1..1..0. .0..1..0. .1..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..24

Crossrefs

Cf. A284222.