A299222 - OEIS

A299222

Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

0, 4, 113, 5663, 766094, 281251424, 260938102438, 624662873923282, 3865535525302817693

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Diagonal of A299228.

LINKS

EXAMPLE

Some solutions for n=5

..0..0..0..0..1. .0..0..1..0..0. .0..0..1..0..0. .0..0..0..1..0

..0..1..0..0..1. .0..1..0..0..1. .0..1..0..0..1. .0..1..1..1..0

..1..0..0..0..0. .1..1..1..0..1. .1..0..1..1..0. .1..0..0..0..1

..0..1..1..1..1. .0..1..0..1..0. .0..1..0..0..1. .0..1..0..0..1

..0..1..1..0..0. .1..0..0..0..1. .1..0..0..1..0. .0..0..0..0..0

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 05 2018

STATUS

approved