A212947 Number of 5Xn 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows

1, 781, 10669771, 801439905901, 212180664326328751, 153322267564381742818531, 255478496068295791189905082231, 870723772630086411238479367066774381, 5548968833443344688974970978997318268321031

Offset

1,2

Comments

Row 5 of A212943

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Sequence in context: A038477 A236888 A006113 * A158398 A003914 A238925

Adjacent sequences: A212944 A212945 A212946 * A212948 A212949 A212950

Keyword

nonn

Author

R. H. Hardin May 31 2012

Status

approved