A208022 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically

2, 16, 102, 1377, 26845, 955073, 56728924, 5753550295, 985606824420, 287995609933240, 142779868614005475, 120212913507245137971, 171965976593899860842629, 417924073201539457547295084

Offset

1,1

Comments

Diagonal of A208028

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

Some solutions for n=4
..1..0..1..1....0..1..1..0....0..1..1..0....1..0..1..1....1..0..1..0
..1..0..1..0....1..1..0..0....1..0..1..0....1..0..1..0....1..0..1..1
..1..1..0..0....1..1..0..1....1..0..1..1....1..1..0..0....1..1..1..1
..1..1..0..1....1..1..1..1....0..1..0..1....0..1..0..1....1..1..1..1

Crossrefs

Sequence in context: A208415 A207945 A207853 * A207803 A370823 A059204

Adjacent sequences: A208019 A208020 A208021 * A208023 A208024 A208025

Keyword

nonn

Author

R. H. Hardin Feb 22 2012

Status

approved