A282309 - OEIS

A282309

Number of n X n 0..1 arrays with no 1 equal to more than four of its king-move neighbors.

2, 16, 419, 40024, 13473987, 15544631618, 63687929371004, 912607092957406137, 45732608217067088771407, 8039776012810034885371563139

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OFFSET

1,1

COMMENTS

Diagonal of A282316.

LINKS

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2017

STATUS

approved