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A213797 Number of n X n 0..5 symmetric arrays with every row summing to floor(n*5/2) 0
1, 6, 96, 9522, 4843626, 13937940952, 212962858290086 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A213800

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A066319 A186269 A111826 * A285025 A288544 A064753

Adjacent sequences:  A213794 A213795 A213796 * A213798 A213799 A213800

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 20 2012

STATUS

approved

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Last modified April 12 11:34 EDT 2021. Contains 342920 sequences. (Running on oeis4.)