A281692 - OEIS

A281692

Number of nX5 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

2, 2516, 172398, 7497214, 269206287, 8480641650, 247006584444, 6815559005187, 180758325599469, 4651322821630888, 116867935942588517, 2880186240231368394, 69855942933376910951, 1671655361771688974424, 39546593568768406440467

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

OFFSET

1,1

COMMENTS

Column 5 of A281693.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..28

EXAMPLE

Some solutions for n=3

..0..0..1..1..0. .0..1..2..0..2. .0..1..0..1..2. .0..1..1..2..2

..0..1..2..1..2. .0..0..2..1..2. .2..1..2..1..0. .1..2..0..1..0

..2..1..0..0..2. .0..2..1..1..0. .1..0..0..0..1. .1..0..2..1..0