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

2, 16, 92, 742, 13260, 220882, 4094666, 129528304, 4643477356, 183171965504, 10948746139548, 797831881523648, 65446536338563458, 7746605907720894574, 1149785247198798823392, 195841032765969991278104

Offset

1,1

Comments

Diagonal of A207419

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

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

Adjacent sequences: A207410 A207411 A207412 * A207414 A207415 A207416

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved