A200930 Number of nX1 0..6 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

7, 21, 57, 107, 151, 134, 70, 906, 5719, 22641, 57330, 94749, 91284, 46026, 712408, 5250502, 23239004, 63993718, 111584800, 110564320, 55707400, 931579960, 7356246430, 34247930590, 97967909500, 175167537020, 176238424600

Offset

1,1

Comments

Column 1 of A200935

Links

R. H. Hardin, Table of n, a(n) for n = 1..129

Example

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

Crossrefs

Sequence in context: A050894 A146464 A001354 * A088656 A146139 A083596

Adjacent sequences: A200927 A200928 A200929 * A200931 A200932 A200933

Keyword

nonn

Author

R. H. Hardin Nov 24 2011

Status

approved