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A268030 Number of 6Xn 0..2 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value. 0
394, 155236, 61162984, 19177213020, 5458407864352, 1411837587469431, 339437646632621026, 76740959189961339827, 16475994752433970120239 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A268026.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

CROSSREFS

Cf. A268026.

Sequence in context: A251256 A270843 A267965 * A278610 A278605 A278269

Adjacent sequences:  A268027 A268028 A268029 * A268031 A268032 A268033

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 24 2016

STATUS

approved

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Last modified May 19 08:11 EDT 2022. Contains 353826 sequences. (Running on oeis4.)