A200989 Number of nX7 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

10, 157, 3604, 95845, 97341, 8434277, 29555346, 171588826, 1801771085, 853004113, 35516752065, 68635361025, 249178222379, 1665476375295, 526294467301, 15773537280426, 22528310745889

Offset

1,1

Comments

Column 7 of A200990

Links

Table of n, a(n) for n=1..17.

Example

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

Crossrefs

Sequence in context: A235340 A306034 A129460 * A268883 A283721 A239761

Adjacent sequences: A200986 A200987 A200988 * A200990 A200991 A200992

Keyword

nonn

Author

R. H. Hardin Nov 25 2011

Status

approved