A305763 - OEIS

A305763

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

1, 8, 141, 4893, 332676, 47791549, 14187207394, 8563002028726, 10773063087952176

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

OFFSET

1,2

COMMENTS

Diagonal of A305769.

LINKS

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 10 2018

STATUS

approved