A286978 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

3, 2088, 238532, 27938670, 3229944132, 382399996325, 45587718323826, 5491408595796062, 665386690317576640, 81085002249528800607, 9923283116879850553806, 1218979761697887011274578

Offset

1,1

Comments

Column 7 of A286979.

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

Some solutions for n=2
..1..0..1..0..1..0..0. .0..0..0..0..0..0..1. .0..0..1..0..0..0..0
..0..0..1..0..1..0..1. .1..1..0..0..0..1..0. .0..1..1..0..1..0..1

Crossrefs

Cf. A286979.

Sequence in context: A004814 A203497 A145700 * A293086 A293099 A336910

Adjacent sequences: A286975 A286976 A286977 * A286979 A286980 A286981

Keyword

nonn

Author

R. H. Hardin, May 17 2017

Status

approved