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A212937
Number of n X n 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows.
1
1, 7, 9019, 2509306671, 212180664326328751, 8389667096561737605103329223, 227328735342370296661661894900118524516359, 5846438367263951495694598571033398108516477233229168235359
OFFSET
1,2
COMMENTS
Diagonal of A212943.
LINKS
EXAMPLE
Some solutions for n=4
..1..3..0..1....1..3..2..1....2..1..1..1....3..3..2..1....0..0..0..3
..0..0..1..0....1..1..0..3....0..2..1..3....3..2..2..2....0..1..1..2
..0..1..1..3....2..3..3..0....3..1..2..0....2..3..2..2....0..2..2..1
..3..0..3..1....1..0..3..0....2..2..1..2....3..1..1..2....2..1..0..2
CROSSREFS
Cf. A212943.
Sequence in context: A234626 A201846 A116631 * A074489 A067248 A152007
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 31 2012
STATUS
approved