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A268366
Number of n X 6 arrays of permutations of 6 copies of 0..n-1 with row sums equal.
0
1, 400, 1054200, 12243840000, 429355384500000, 39489843246336000000, 7875251932432856328000000, 3103313606339070135803904000000, 2222194400107579127937216888000000000
OFFSET
1,2
COMMENTS
Column 6 of A268367.
EXAMPLE
Some solutions for n=2
..1..1..0..1..0..0....0..1..0..1..0..1....1..0..1..0..1..0....1..1..0..1..0..0
..1..0..1..1..0..0....0..1..1..0..1..0....1..1..0..1..0..0....0..1..0..1..0..1
CROSSREFS
Cf. A268367.
Sequence in context: A022232 A151652 A197441 * A013767 A013895 A296904
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 03 2016
STATUS
approved