A207736 - OEIS

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

2, 16, 114, 1849, 86355, 9259849, 2215586241, 1207251562500, 1504250577851460, 4240840118917220289, 26956572348445823078057, 387211891430119861291459849, 12581321412478916326490284012715, 923581786817019708657060682986420624

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OFFSET

1,1

COMMENTS

Diagonal of A207741

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..18

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

Adjacent sequences: A207733 A207734 A207735 * A207737 A207738 A207739

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 19 2012

STATUS

approved