A299226 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 793, 21792, 486305, 11568483, 281251424, 6766315496, 162902164724, 3925885203249, 94583364942194, 2278655600670624, 54899678166337106, 1322688236196434142, 31867127372632598869, 767767745513800333670

Offset

1,1

Comments

Column 6 of A299228.

Links

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

Example

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

Crossrefs

Cf. A299228.

Sequence in context: A298545 A298335 A299396 * A300038 A060713 A198402

Adjacent sequences: A299223 A299224 A299225 * A299227 A299228 A299229

Keyword

nonn

Author

R. H. Hardin, Feb 05 2018

Status

approved