A250868 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column

262144, 4096000, 4096000, 64000000, 128000000, 64000000, 1000000000, 4000000000, 4000000000, 1000000000, 8000000000, 125000000000, 250000000000, 125000000000, 8000000000, 64000000000, 1750000000000, 15625000000000

Offset

1,1

Comments

Table starts

.........262144...........4096000.............64000000..............1000000000

........4096000.........128000000...........4000000000............125000000000

.......64000000........4000000000.........250000000000..........15625000000000

.....1000000000......125000000000.......15625000000000........1953125000000000

.....8000000000.....1750000000000......382812500000000.......83740234375000000

....64000000000....24500000000000.....9378906250000000.....3590362548828125000

...512000000000...343000000000000...229783203125000000...153936794281005859375

..2744000000000..2941225000000000..3152625546875000000..3379220508056640625000

.14706125000000.25221004375000000.43254022503125000000.74180648592859375000000

Links

R. H. Hardin, Table of n, a(n) for n = 1..241

Example

Some solutions for n=1 k=4
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..1..0....0..0..0..0..2..3....2..0..2..2..1..3....0..0..0..2..2..2
..2..0..0..2..0..1....1..0..1..2..0..1....1..0..1..2..1..3....0..0..0..2..3..3

Crossrefs

Sequence in context: A224806 A224803 A223336 * A250861 A186629 A186626

Adjacent sequences: A250865 A250866 A250867 * A250869 A250870 A250871

Keyword

nonn,tabl

Author

R. H. Hardin, Nov 28 2014

Status

approved