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A229420 Number of 6X6 0..n zero-diagonal arrays with corresponding row and column sums equal 0
1375952, 23938685973, 28256240134144, 7093199984236625, 657759228191876016, 30505804179367041217, 850029945152225681408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A229417

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=1

..0..0..0..0..1..0....0..0..0..0..1..1....0..0..0..0..0..0....0..0..0..0..0..1

..0..0..0..1..0..1....0..0..1..1..0..0....0..0..0..1..1..0....0..0..0..1..1..0

..0..0..0..1..1..0....0..0..0..0..0..1....0..0..0..0..0..1....0..1..0..0..0..1

..1..1..1..0..0..0....0..1..0..0..0..0....0..0..1..0..1..0....1..0..1..0..1..0

..0..1..1..1..0..0....1..1..0..0..0..0....0..1..0..1..0..0....0..1..0..1..0..0

..0..0..0..0..1..0....1..0..0..0..1..0....0..1..0..0..0..0....0..0..1..1..0..0

CROSSREFS

Sequence in context: A114657 A250058 A205205 * A249882 A252446 A288073

Adjacent sequences:  A229417 A229418 A229419 * A229421 A229422 A229423

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 22 2013

STATUS

approved

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Last modified September 15 12:22 EDT 2019. Contains 327078 sequences. (Running on oeis4.)