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A224285 Number of 6Xn 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing 1
4096, 1600000, 37128051, 356222482, 2425304290, 14587480744, 86539248276, 519675953580, 3101250505830, 17906548084860, 98091759991859, 504379639489778, 2424565118584031, 10897029351109181, 45902682124075154 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A224281

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..102

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

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

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

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

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

CROSSREFS

Sequence in context: A224028 A269206 A183816 * A224208 A017034 A017118

Adjacent sequences:  A224282 A224283 A224284 * A224286 A224287 A224288

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 02 2013

STATUS

approved

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Last modified October 21 14:11 EDT 2019. Contains 328301 sequences. (Running on oeis4.)