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A224267
Number of 7Xn 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing
1
36, 1296, 24842, 296646, 2485967, 15921905, 83124099, 371699763, 1478187738, 5375576014, 18237850918, 58547208334, 179599458173, 530112786109, 1512954573026, 4190185564746, 11292006460221, 29674041029167
OFFSET
1,1
COMMENTS
Row 7 of A224262
FORMULA
Empirical polynomial of degree 28 (see link above)
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....1..1..0....0..1..0
..0..0..1....0..1..0....0..0..1....0..1..0....0..2..2....1..1..1....1..1..0
..0..2..1....2..1..0....1..1..2....1..1..0....2..2..2....2..2..1....1..1..0
..2..2..1....2..1..1....1..2..2....2..1..0....2..2..2....2..2..1....1..1..0
..2..2..1....2..1..1....2..2..2....2..1..0....2..2..2....2..2..1....1..2..1
..2..2..2....2..1..1....2..2..2....2..1..0....2..2..2....2..2..1....1..2..2
..2..2..2....2..2..1....2..2..2....2..1..0....2..2..2....2..2..2....1..2..2
CROSSREFS
Sequence in context: A158700 A144128 A223405 * A223924 A224352 A224194
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved