A205179 Number of (n+1)X7 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards

8458978, 6934715463, 3518676186849, 1450722933612883, 542569301045830422

Offset

1,1

Comments

Column 6 of A205181

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A283032 A049362 A251119 * A339866 A251173 A203824

Adjacent sequences: A205176 A205177 A205178 * A205180 A205181 A205182

Keyword

nonn

Author

R. H. Hardin Jan 22 2012

Status

approved