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A207413
Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically
1
2, 16, 92, 742, 13260, 220882, 4094666, 129528304, 4643477356, 183171965504, 10948746139548, 797831881523648, 65446536338563458, 7746605907720894574, 1149785247198798823392, 195841032765969991278104
OFFSET
1,1
COMMENTS
Diagonal of A207419
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0....0..0..0..0....0..1..1..1....1..1..0..0....1..1..0..1
..1..1..1..1....1..1..0..1....1..1..1..0....1..1..1..0....1..1..0..1
..1..0..0..0....0..0..0..0....0..0..0..0....1..0..0..0....0..1..1..0
..1..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
CROSSREFS
Sequence in context: A208002 A220932 A207558 * A271273 A220882 A295903
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 17 2012
STATUS
approved