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A224177 Number of 6Xn 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing 1
84, 7056, 282372, 6425876, 95808564, 1038484760, 8857798353, 63080505999, 391482575333, 2182020084219, 11154302333669, 53070835890575, 237508827855216, 1007614860280386, 4076458517196412, 15801076345180104 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A224173

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..39

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

CROSSREFS

Sequence in context: A132052 A273438 A097840 * A223869 A224389 A223991

Adjacent sequences:  A224174 A224175 A224176 * A224178 A224179 A224180

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 31 2013

STATUS

approved

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Last modified January 25 07:35 EST 2020. Contains 331241 sequences. (Running on oeis4.)