A205197 Number of (n+1)X5 0..3 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero

83720, 25243114, 8736632044, 2336984953738, 574748789388149, 112059271155803264

Offset

1,1

Comments

Column 4 of A205198

Links

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

Example

Some solutions for n=4
..1..0..1..2..0....1..1..3..0..3....0..2..2..0..2....2..2..0..2..1
..1..1..1..3..3....2..1..3..2..2....1..2..1..3..0....3..0..3..0..3
..1..3..1..1..3....0..2..0..2..3....1..2..3..0..3....3..2..0..3..2
..1..1..1..3..3....3..2..2..0..3....1..2..3..1..2....3..0..3..3..1
..1..3..1..1..3....0..2..0..2..2....1..2..3..0..3....1..2..0..3..2

Crossrefs

Sequence in context: A104928 A202933 A013885 * A203395 A333683 A295470

Adjacent sequences: A205194 A205195 A205196 * A205198 A205199 A205200

Keyword

nonn

Author

R. H. Hardin Jan 23 2012

Status

approved