References to A051133

C(2n,n)*n*(2n+1)/2.
0, 3, 30, 210, 1260, 6930, 36036, 180180, 875160, 4157010, 19399380, 89237148


1 seqfan posts

Wed Aug 25 11:03:46 CEST 2010    [seqfan] Just for fun, more tennis balls - addendum

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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