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A224187 Number of nX5 0..2 arrays with rows unimodal and columns nondecreasing 1
86, 1600, 14751, 89380, 408222, 1519738, 4844576, 13669953, 34953776, 82399174, 181434331, 376946128, 744873156, 1409068188, 2565196232, 4513845865, 7705502706, 12800568660, 20748212991, 32888515396, 51083111090, 77880377510 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A224190

LINKS

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

FORMULA

Empirical: a(n) = (1009/907200)*n^10 + (913/36288)*n^9 + (15121/60480)*n^8 + (8677/6048)*n^7 + (226987/43200)*n^6 + (110621/8640)*n^5 + (3804217/181440)*n^4 + (206081/9072)*n^3 + (130433/8400)*n^2 + (3793/630)*n + 1

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A232859 A224259 A223915 * A223930 A224054 A224307

Adjacent sequences:  A224184 A224185 A224186 * A224188 A224189 A224190

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 01 2013

STATUS

approved

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Last modified May 25 03:39 EDT 2022. Contains 354047 sequences. (Running on oeis4.)