A204959 Number of (n+1)X6 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

1267, 32468, 807253, 19632936, 476276892, 11028008070, 246591161060, 5248210960544, 106997663124147, 2086649523381787, 39122500999588944, 706903250573030790, 12361380183820578642, 209847974924190991957

Offset

1,1

Comments

Column 5 of A204962

Links

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

Example

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

Crossrefs

Sequence in context: A364610 A038652 A204720 * A231838 A231699 A238286

Adjacent sequences: A204956 A204957 A204958 * A204960 A204961 A204962

Keyword

nonn

Author

R. H. Hardin Jan 20 2012

Status

approved