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A223990 Number of 5Xn 0..3 arrays with rows unimodal and columns nondecreasing 1
56, 3136, 99634, 2086196, 31831914, 378122264, 3661410444, 29889154034, 211009204916, 1314178222276, 7336228725354, 37185201981670, 172974779780114, 745060738789758, 2994209711354545, 11299608627412727, 40267814207071512 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A223987

LINKS

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

R. H. Hardin, Empirical polynomial of degree 30

FORMULA

Empirical polynomial of degree 30 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A328352 A224176 A223868 * A224388 A224021 A042513

Adjacent sequences:  A223987 A223988 A223989 * A223991 A223992 A223993

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 30 2013

STATUS

approved

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Last modified October 23 16:20 EDT 2021. Contains 348215 sequences. (Running on oeis4.)