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A223048
T(n,k)=Number of nXk 0..2 arrays with every row and column least squares fitting to a nonnegative slope straight line, with a single point array taken as having zero slope
5
3, 6, 6, 18, 20, 18, 45, 120, 120, 45, 141, 536, 2160, 536, 141, 386, 3378, 24120, 24120, 3378, 386, 1191, 17362, 476298, 570915, 476298, 17362, 1191, 3402, 108534, 6701732, 28942155, 28942155, 6701732, 108534, 3402, 10446, 597935, 129263994, 932439860
OFFSET
1,1
COMMENTS
Table starts
.....3.......6.........18..........45..........141..........386...........1191
.....6......20........120.........536.........3378........17362.........108534
....18.....120.......2160.......24120.......476298......6701732......129263994
....45.....536......24120......570915.....28942155....932439860....46018580355
...141....3378.....476298....28942155...4832534313.441127163210.70296226768557
...386...17362....6701732...932439860.441127163210
..1191..108534..129263994.46018580355
..3402..597935.2034174870
.10446.3721248
.30294
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..2..0..1....0..1..0..2....0..1..0..1....0..0..1..2....0..0..0..2
..0..1..1..0....1..1..1..2....1..0..1..1....0..0..2..0....1..2..2..1
..1..2..0..2....1..2..0..2....0..2..0..2....1..0..1..2....2..0..2..2
CROSSREFS
Sequence in context: A370154 A265026 A304335 * A319446 A181372 A168426
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 12 2013
STATUS
approved