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A224390 Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing 1
120, 14400, 881519, 32806574, 882833522, 19879000458, 424124440444, 9276284077351, 212972822153405, 5078434646430668, 123731812099601647, 3047111408129189213, 75453561534676485695, 1874665689163421824860 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 17 20:36 EST 2020. Contains 330987 sequences. (Running on oeis4.)