A200968 Number of nX2 0..6 arrays with every row and column running average nondecreasing rightwards and downwards

28, 336, 3636, 37254, 368218, 3543465, 33420304, 310188575, 2842734858, 25785030510, 231905061219, 2071004316674, 18384294374976, 162358277380149, 1427441485073845, 12500646342073494, 109091420391340409

Offset

1,1

Comments

Column 2 of A200974

Links

R. H. Hardin, Table of n, a(n) for n = 1..99

Example

Some solutions for n=3
..1..1....0..0....1..2....0..0....1..5....0..5....0..3....0..3....1..5....0..2
..6..6....0..3....2..5....0..1....3..5....1..6....3..3....0..6....4..6....0..2
..5..5....0..2....4..5....4..4....3..5....4..6....2..3....4..5....3..6....2..5

Crossrefs

Sequence in context: A027820 A092713 A134288 * A285739 A010833 A022720

Adjacent sequences: A200965 A200966 A200967 * A200969 A200970 A200971

Keyword

nonn

Author

R. H. Hardin Nov 25 2011

Status

approved