A224390 Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing

120, 14400, 881519, 32806574, 882833522, 19879000458, 424124440444, 9276284077351, 212972822153405, 5078434646430668, 123731812099601647, 3047111408129189213, 75453561534676485695, 1874665689163421824860

Offset

1,1

Comments

Column 7 of A224391

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A059063 A224178 A223870 * A223992 A224023 A121012

Adjacent sequences: A224387 A224388 A224389 * A224391 A224392 A224393

Keyword

nonn

Author

R. H. Hardin Apr 05 2013

Status

approved