A299572 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

5, 49, 113, 844, 3324, 17389, 98466, 505680, 2704280, 14896422, 80674960, 436599237, 2382400710, 12987126903, 70685553416, 385228050075, 2100424810349, 11448535312384, 62405674198686, 340233296698539, 1854922794640746

Offset

1,1

Comments

Column 6 of A299574.

Links

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

Example

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

Crossrefs

Cf. A299574.

Sequence in context: A297957 A298773 A298580 * A266127 A343690 A298394

Adjacent sequences: A299569 A299570 A299571 * A299573 A299574 A299575

Keyword

nonn

Author

R. H. Hardin, Feb 13 2018

Status

approved