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A076181
a(n) = (n^2)!/(n!)^(n+1)/(2n-1).
0
1, 1, 56, 375375, 577185873264, 337143653615801672640, 112387296492020598351382561996800, 30035919199125011172228882156381540400453089375, 8612584407483201348696124216860807740603132996062773468500000000
OFFSET
1,3
CROSSREFS
Sequence in context: A135426 A028670 A278608 * A278893 A375778 A101355
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Nov 01 2002
STATUS
approved