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A224194 Number of 7Xn 0..2 arrays with rows unimodal and columns nondecreasing 1
36, 1296, 28176, 424326, 4844576, 44435746, 340780382, 2249643632, 13068669308, 67970305364, 320903298144, 1390873688506, 5586138847981, 20953028554541, 73888808853350, 246365532350644, 780525967950004, 2359724042194860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A224190

LINKS

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

R. H. Hardin, Empirical polynomial of degree 28

FORMULA

Empirical polynomial of degree 28 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A224267 A223924 A224352 * A224011 A300357 A009980

Adjacent sequences:  A224191 A224192 A224193 * A224195 A224196 A224197

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 01 2013

STATUS

approved

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Last modified December 7 22:29 EST 2019. Contains 329850 sequences. (Running on oeis4.)