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A207736
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically
1
2, 16, 114, 1849, 86355, 9259849, 2215586241, 1207251562500, 1504250577851460, 4240840118917220289, 26956572348445823078057, 387211891430119861291459849, 12581321412478916326490284012715, 923581786817019708657060682986420624
OFFSET
1,1
COMMENTS
Diagonal of A207741
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..1....1..1..0..1....0..1..1..0....1..1..0..1....1..1..1..0
..1..0..1..1....0..0..1..1....0..1..1..1....0..1..1..1....1..0..1..1
..0..0..1..1....1..1..1..1....0..0..1..1....1..0..0..1....1..1..0..0
..1..0..0..1....1..0..1..1....0..1..1..0....0..1..1..1....1..1..1..1
CROSSREFS
Sequence in context: A125725 A288965 A207420 * A208364 A207711 A162723
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 19 2012
STATUS
approved