A297913 Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 4 king-move adjacent elements, with upper left element zero.

1, 301, 481, 6044, 86201, 1084333, 15983426, 223362153, 3195010015, 45730653939, 652203954423, 9331059855942, 133396414344833, 1907203119726288, 27271253989660818, 389937374066207167, 5575659398081671506

Offset

1,2

Comments

Column 6 of A297915.

Links

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

Example

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

Crossrefs

Cf. A297915.

Sequence in context: A151609 A004225 A004226 * A298506 A282769 A256101

Adjacent sequences: A297910 A297911 A297912 * A297914 A297915 A297916

Keyword

nonn

Author

R. H. Hardin, Jan 08 2018

Status

approved