A283098 Number of nX6 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements.

5, 606, 31669, 1237504, 42681282, 1354321470, 40737147156, 1177012522158, 32993790452893, 903014677129570, 24240783265173009, 640399679299433390, 16692234830090081754, 430127734274499659696, 10974448860473249639158

Offset

1,1

Comments

Column 6 of A283100.

Links

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

Example

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

Crossrefs

Cf. A283100.

Sequence in context: A299305 A299463 A300106 * A216933 A274704 A013736

Adjacent sequences: A283095 A283096 A283097 * A283099 A283100 A283101

Keyword

nonn

Author

R. H. Hardin, Feb 28 2017

Status

approved