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A224203
Number of nX7 0..3 arrays with rows unimodal and antidiagonals nondecreasing
1
1163, 180821, 11446096, 475218035, 17178450136, 618703866073, 22835261226043, 856178295327574, 32299825618280351, 1220504574023229563, 46124705848425800316, 1742806875797016046956, 65840694352751999751002
OFFSET
1,1
COMMENTS
Column 7 of A224204
FORMULA
Empirical recurrence of order 41 (see link above)
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1..1....0..0..0..0..0..1..0....0..0..0..0..2..0..0
..0..0..0..1..3..2..0....0..0..0..1..1..1..1....0..0..0..2..3..2..0
..0..0..1..3..3..3..1....0..0..2..3..3..3..3....0..2..2..3..3..2..2
CROSSREFS
Sequence in context: A224063 A224049 A224280 * A223761 A223875 A223849
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 01 2013
STATUS
approved