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A203562 Number of nX6 0..2 arrays with row sums equal and column sums equal 0
3, 183, 10833, 513903, 39612503, 8459809773, 360255871643, 37057831534783, 4131064166006823, 431284911997558083, 48321459222257750543 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A203564

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A013519 A042779 A103503 * A198701 A157561 A157590

Adjacent sequences:  A203559 A203560 A203561 * A203563 A203564 A203565

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 03 2012

STATUS

approved

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Last modified October 17 07:39 EDT 2021. Contains 348048 sequences. (Running on oeis4.)