A293096 Number of n X 4 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

0, 42, 567, 8088, 115870, 1710994, 25504769, 383909610, 5821195059, 88774881168, 1360012227225, 20913114635864, 322580968736023, 4988786216140076, 77325995176393118, 1200887079044838246, 18681923365562958635

Offset: 1

Author

R. H. Hardin, Sep 30 2017

Keywords

• nonn

Comments

Column 4 of A293100.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..162

Crossrefs

Cf. A293100.