

A275137


Number of n X n 0..2 arrays with no element equal to any value at offset (2,2) (1,2) or (0,1) and new values introduced in order 0..2.


1



1, 6, 80, 1088, 9744, 165568, 4055152, 147762240, 7887576208, 624224888096, 72861217834416, 12595738987019680, 3224446583629649792, 1224344356792821362688, 689079095818717776787184
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OFFSET

1,2


COMMENTS



LINKS



EXAMPLE

Some solutions for n=5
..0..1..2..0..1. .0..1..2..1..0. .0..1..2..1..0. .0..1..2..1..0
..2..0..1..2..1. .2..0..1..0..1. .2..0..1..2..0. .2..0..1..2..1
..1..2..1..2..0. .1..0..1..2..0. .1..2..1..2..0. .1..2..1..2..0
..0..2..0..1..0. .1..2..0..2..0. .1..2..0..1..0. .0..2..0..1..0
..2..1..2..1..2. .1..0..2..1..2. .0..1..2..1..2. .2..0..2..0..2


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



