A205196 Number of (n+1)X4 0..3 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero

13366, 1256641, 121990159, 8736632044, 574289759868, 30273558353295, 1465496326952443, 61370496069229820, 2389662741082255367, 84128021859080348159, 2784672079756420101754, 85572965154250321625295

Offset

1,1

Comments

Column 3 of A205198

Links

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

Example

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

Crossrefs

Sequence in context: A176465 A185503 A333014 * A235297 A252240 A220060

Adjacent sequences: A205193 A205194 A205195 * A205197 A205198 A205199

Keyword

nonn

Author

R. H. Hardin Jan 23 2012

Status

approved