A298376 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

1, 5, 6, 47, 852, 17749, 682833, 59733814, 9025761348, 2260336865034

Offset

1,2

Comments

Diagonal of A298382.

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=6
..0..0..1..1..0..0. .0..1..1..0..1..0. .0..1..1..0..1..0. .0..1..0..1..1..1
..1..0..0..1..1..0. .1..1..0..0..1..1. .0..0..1..0..0..0. .0..0..0..1..1..1
..0..0..0..0..0..1. .1..0..1..1..0..0. .1..1..1..1..0..1. .0..1..1..1..0..0
..1..0..0..1..0..1. .1..0..0..1..0..1. .1..0..1..1..1..1. .1..0..1..1..0..1
..0..0..1..1..1..0. .0..1..1..0..0..0. .0..0..1..0..0..1. .0..1..0..1..1..1
..1..0..0..0..0..0. .0..0..0..0..1..0. .0..1..1..1..0..0. .0..0..1..1..0..1

Crossrefs

Cf. A298382.

Sequence in context: A219516 A273050 A163481 * A269908 A157805 A256291

Adjacent sequences: A298373 A298374 A298375 * A298377 A298378 A298379

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved