A206220 Number of (n+1)X6 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing

33386, 5862927, 600064928, 74479700228, 7626209039519, 656654900321262, 46954627739500046, 2857994610813268269, 153669461683842088404, 7633859374178156693439, 365363140359338927395032

Offset

1,1

Comments

Column 5 of A206223

Links

R. H. Hardin, Table of n, a(n) for n = 1..124

Example

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

Crossrefs

Sequence in context: A210720 A233751 A205212 * A069303 A235678 A235448

Adjacent sequences: A206217 A206218 A206219 * A206221 A206222 A206223

Keyword

nonn

Author

R. H. Hardin Feb 04 2012

Status

approved