A298552 Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

1, 65, 51, 226, 1073, 4157, 17378, 72567, 310925, 1345213, 5838677, 25301005, 109571679, 474769122, 2057603778, 8921707118, 38692520695, 167816832490, 727894582728, 3157277184685, 13695098921202, 59405096762458

Offset

1,2

Comments

Column 6 of A298554.

Links

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

Example

Some solutions for n=7
..0..1..1..1..1..0. .0..0..0..0..0..0. .0..0..1..0..1..0. .0..1..0..0..1..0
..1..1..0..0..1..1. .0..1..1..1..0..1. .0..0..1..1..1..1. .0..0..0..1..1..1
..0..0..0..1..0..1. .1..0..0..1..1..1. .1..1..1..1..1..0. .0..1..1..1..1..0
..0..0..1..0..0..1. .1..1..0..0..0..1. .0..1..1..1..0..0. .1..0..1..1..1..1
..0..0..0..1..0..1. .0..0..1..0..0..1. .0..0..1..1..1..0. .0..1..0..0..0..1
..1..1..0..0..1..1. .0..0..0..1..1..1. .1..0..1..0..0..1. .0..1..0..1..1..0
..0..1..1..1..1..0. .0..0..0..1..0..1. .0..0..0..1..1..1. .0..0..1..1..0..0

Crossrefs

Cf. A298554.

Sequence in context: A033385 A275484 A297941 * A302458 A303240 A298725

Adjacent sequences: A298549 A298550 A298551 * A298553 A298554 A298555

Keyword

nonn

Author

R. H. Hardin, Jan 21 2018

Status

approved