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A224280 Number of nX7 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing 1
1163, 180821, 8626382, 233090092, 4728056658, 86539248276, 1597855917875, 31198793873704, 648539832987579, 14190379537730766, 321738654013526452, 7458658599338643026, 175162125039011466648, 4143668812111247607851 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A224281

LINKS

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

EXAMPLE

Some solutions for n=3

..0..0..0..0..1..0..0....0..0..0..0..2..1..1....0..0..0..0..1..1..2

..0..0..0..1..1..2..3....0..0..0..2..1..1..1....0..0..0..3..2..2..0

..0..0..2..2..3..3..2....0..0..2..3..2..1..0....0..0..3..3..3..2..0

CROSSREFS

Sequence in context: A223986 A224063 A224049 * A224203 A223761 A223875

Adjacent sequences:  A224277 A224278 A224279 * A224281 A224282 A224283

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 02 2013

STATUS

approved

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Last modified July 4 20:08 EDT 2022. Contains 355086 sequences. (Running on oeis4.)