A281126 - OEIS

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A281126

Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

2, 208, 5590, 75668, 923678, 10441416, 112649322, 1178277478, 12052427112, 121217893114, 1203135774464, 11815341234706, 115023383706648, 1111618427587466, 10676654271394364, 102000704609797814

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

OFFSET

1,1

COMMENTS

Column 4 of A281129.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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