A299527 Number of nX7 0..1 arrays with every element equal to 1, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 240, 269, 16538, 258389, 4719927, 135080376, 3421183432, 75654324618, 2038805101369, 52861847770304, 1281796440951349, 33216166471839387, 857659294267674712, 21467655313529166083, 549519871796070278635

Offset

1,2

Comments

Column 7 of A299528.

Links

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

Example

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

Crossrefs

Cf. A299528.

Sequence in context: A298453 A121378 A191533 * A328589 A135194 A031173

Adjacent sequences: A299524 A299525 A299526 * A299528 A299529 A299530

Keyword

nonn

Author

R. H. Hardin, Feb 11 2018

Status

approved