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A201450
Number of n X 7 0..3 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
1
4, 110, 844, 1720, 45532, 363693, 1129682, 1136762, 16354832, 80822317, 164740812, 118019739, 1269643884, 4872612379, 7910355612, 4617454222, 41308142036, 133824389250, 186755344178, 94854691897, 750329582592, 2169912953058
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=5:
..0..0..0..0..1..1..1....0..0..0..1..1..1..2....0..0..0..0..0..1..2
..0..0..1..1..1..1..3....0..0..1..1..1..1..3....0..0..1..1..1..2..2
..0..0..1..1..2..2..3....0..1..1..2..2..2..3....0..1..1..1..2..2..3
..0..2..2..2..3..3..3....0..2..2..2..2..2..3....0..1..1..2..2..2..3
..2..2..2..2..3..3..3....0..3..3..3..3..3..3....3..3..3..3..3..3..3
CROSSREFS
Column 7 of A201451.
Sequence in context: A015100 A061454 A346277 * A286424 A358806 A358779
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2011
STATUS
approved