A219740 Unmatched value maps: number of nX7 binary arrays indicating the locations of corresponding elements not equal to any horizontal, vertical or antidiagonal neighbor in a random 0..1 nX7 array.

37, 277, 3606, 39905, 466288, 5350080, 61758332, 711479843, 8201909757, 94531063074, 1089590912023, 12558669019786, 144752526242487, 1668430514943073, 19230483410164823, 221652312986931867

Offset: 1

Author

R. H. Hardin Nov 26 2012

Keywords

• nonn

Comments

Column 7 of A219741

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..43

Formula

Zeilberger's Maple code (see links in A228285) would give a recurrence for this sequence. - N. J. A. Sloane, Aug 22 2013