A207429 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 0 vertically

14, 196, 1162, 6889, 55361, 444889, 3210938, 23174596, 174570082, 1315005169, 9738102283, 72114268681, 537769464960, 4010246553600, 29819994798720, 221740004737969, 1650780521420653, 12289511462408761, 91447279848789522

Offset

1,1

Comments

Row 5 of A207426

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A208291 A207439 A207445 * A208371 A208146 A207743

Adjacent sequences: A207426 A207427 A207428 * A207430 A207431 A207432

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved