A212935 Number of 6Xn 0..n-1 arrays with no column j greater than column j-1 in all rows

1, 4095, 386357608, 279128913678335, 916111390974365234376, 10046278068363977051128904352, 300496032699305814168049256913886664, 21222664979041855752064468032655567100514303

Offset

1,2

Comments

Row 6 of A212930

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

Example

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

Crossrefs

Sequence in context: A359085 A069413 A069439 * A076154 A182685 A182686

Adjacent sequences: A212932 A212933 A212934 * A212936 A212937 A212938

Keyword

nonn

Author

R. H. Hardin May 31 2012

Status

approved