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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
Diagonal of
A275142
.
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..19
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
Cf.
A275142
.
Sequence in context:
A229574
A381646
A240409
*
A167570
A337564
A177776
Adjacent sequences:
A275134
A275135
A275136
*
A275138
A275139
A275140
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Jul 17 2016
STATUS
approved
