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A224113
T(n,k)=Number of nXk 0..3 arrays with row sums and column sums unimodal
3
4, 16, 16, 50, 256, 50, 130, 3060, 3060, 130, 296, 29922, 141112, 29922, 296, 610, 252912, 5286827, 5286827, 252912, 610, 1163, 1912914, 169786856, 762031090, 169786856, 1912914, 1163, 2083, 13254601, 4837645361, 93991412090, 93991412090
OFFSET
1,1
COMMENTS
Table starts
....4........16............50..............130...............296
...16.......256..........3060............29922............252912
...50......3060........141112..........5286827.........169786856
..130.....29922.......5286827........762031090.......93991412090
..296....252912.....169786856......93991412090....44633436796823
..610...1912914....4837645361...10255460738958.18747100782890395
.1163..13254601..125243425246.1013220280453733
.2083..85563043.2997702534361
.3544.521069404
.5776
LINKS
EXAMPLE
Some solutions for n=3 k=4
..2..0..0..2....0..2..3..0....2..2..0..0....2..0..3..2....2..0..3..0
..2..2..1..0....0..0..3..2....2..0..2..0....2..2..3..0....0..2..2..2
..3..1..2..0....3..3..3..0....0..3..0..2....0..3..1..2....3..3..2..3
CROSSREFS
Column 1 is A223659
Column 2 is A223660
Sequence in context: A223762 A223850 A223663 * A223876 A223801 A336938
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 31 2013
STATUS
approved