A206222 Number of (n+1)X8 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing

588254, 499752207, 131428029860, 77008927829374, 46954627739500046, 33632275642926148580

Offset

1,1

Comments

Column 7 of A206223

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=4
..0..2..1..2..2..0..0..0....2..0..2..1..0..1..1..2....1..2..0..0..0..0..2..1
..2..2..0..0..0..0..1..0....2..0..0..0..0..1..1..2....1..1..0..2..0..0..1..1
..0..0..0..2..1..0..2..2....2..0..1..0..0..1..1..2....1..0..0..2..0..0..1..2
..2..1..0..2..1..0..1..2....0..0..2..0..0..0..0..0....0..0..0..2..0..0..2..2
..1..2..0..0..0..0..2..0....0..0..0..0..2..1..1..0....2..2..0..2..0..0..2..2

Crossrefs

Sequence in context: A104962 A100386 A205214 * A202160 A216927 A090871

Adjacent sequences: A206219 A206220 A206221 * A206223 A206224 A206225

Keyword

nonn

Author

R. H. Hardin Feb 04 2012

Status

approved