A297084 Number of nX7 0..1 arrays with no 1 adjacent to 2 king-move neighboring 1s.

81, 2620, 105494, 6743851, 444282892, 31284950414, 2245841563645, 161959380452328, 11725115199949679, 849721643676688222, 61607378083911684026, 4467778025062737029643, 324029039753982645781516

Offset

1,1

Comments

Column 7 of A297085.

Links

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

Example

Some solutions for n=5
..0..0..1..0..1..0..1. .0..0..0..0..0..1..1. .0..0..0..0..0..1..0
..0..0..0..1..0..0..1. .0..0..0..0..0..1..1. .0..0..0..0..0..1..0
..0..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
..0..0..0..0..1..0..1. .0..0..0..1..1..0..0. .0..0..0..0..0..1..0
..0..0..0..0..1..0..1. .0..0..0..1..1..0..1. .0..0..0..1..0..0..0

Crossrefs

Cf. A297085.

Sequence in context: A206534 A231859 A210128 * A018223 A206660 A253525

Adjacent sequences: A297081 A297082 A297083 * A297085 A297086 A297087

Keyword

nonn

Author

R. H. Hardin, Dec 25 2017

Status

approved