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A224208 Number of 6Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing 1
4096, 1600000, 72105068, 1229044416, 12652618110, 96914926654, 618703866073, 3548209715979, 19271137728483, 102347986047920, 537384393939360, 2776104877172612, 13950578706978266, 67469676772365413, 311817626166418846 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A224204

LINKS

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

R. H. Hardin, Empirical polynomial of degree 36

FORMULA

Empirical polynomial of degree 36 (see link above)

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

..0..0..2....0..0..2....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

CROSSREFS

Sequence in context: A269206 A183816 A224285 * A017034 A017118 A269294

Adjacent sequences:  A224205 A224206 A224207 * A224209 A224210 A224211

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 01 2013

STATUS

approved

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Last modified July 22 07:23 EDT 2019. Contains 325216 sequences. (Running on oeis4.)