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A208073
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.
1
2, 16, 126, 2601, 139605, 17098225, 4412968520, 2580469555456, 3485691022698248, 10640054910525548209, 72722981173167013234455, 1123008691175260414001447481, 39309117808240836879763740048294
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OFFSET
1,1
COMMENTS
Diagonal of
A208078
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..22
EXAMPLE
Some solutions for n=4
..1..0..1..0....1..0..1..0....0..1..0..0....1..0..1..0....1..0..1..1
..1..0..1..1....1..1..0..1....0..1..1..0....0..1..0..0....0..1..1..1
..0..1..0..1....0..1..1..1....1..1..1..1....1..1..1..1....0..1..1..1
..1..1..1..0....1..1..1..1....1..0..1..1....1..1..1..1....1..0..1..0
CROSSREFS
Sequence in context:
A241466
A069868
A338186
*
A022027
A322297
A338933
Adjacent sequences:
A208070
A208071
A208072
*
A208074
A208075
A208076
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Feb 23 2012
STATUS
approved
