A204961 Number of (n+1) X 8 0..1 arrays with rows and columns of permanents of all 2 X 2 subblocks lexicographically nondecreasing.

9490, 659392, 43018570, 3129723425, 246591161060, 19640644500055, 1559031370472325, 119012217274007744, 8686919738508515698, 600759606861216974277, 39403490381709868639878, 2451231522322760712985703

Offset

1,1

Comments

Column 7 of A204962.

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

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

Crossrefs

Cf. A204962.

Sequence in context: A161726 A110076 A204722 * A237104 A156402 A139676

Adjacent sequences: A204958 A204959 A204960 * A204962 A204963 A204964

Keyword

nonn

Author

R. H. Hardin, Jan 20 2012

Status

approved