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A229869 Number of n X n 0..5 arrays with corresponding row and column sums equal 0
6, 216, 143856, 2805425280, 1656812779036416, 30688414550520167402496 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A229870

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

..0..0..3..3....0..3..0..3....0..3..3..0....0..3..3..3....0..0..3..3

..3..0..3..0....3..0..0..0....3..0..0..3....3..0..3..3....3..0..0..3

..1..4..2..5....1..0..2..4....2..1..0..3....2..2..3..2....2..4..3..1

..2..2..4..2....2..0..5..5....1..2..3..0....4..4..0..1....1..2..4..0

CROSSREFS

Sequence in context: A109354 A193613 A194503 * A234610 A041623 A292692

Adjacent sequences:  A229866 A229867 A229868 * A229870 A229871 A229872

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 01 2013

STATUS

approved

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Last modified September 16 18:26 EDT 2021. Contains 347473 sequences. (Running on oeis4.)