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A133706
Numerator of a remarkable product.
2
1, 2, 3, 4, 5, 6, 8, 16, 60, 440, 6028, 144672, 5726600, 355049200, 33019575600, 4442233570720, 838471586473400, 216325669310137200, 74596301633778977800, 33717528338468097965600, 19638774380740743660063720
OFFSET
1,2
COMMENTS
The first nonintegral term occurs at n=76.
LINKS
FORMULA
a(n) = Product( (394 - 225 i + 85 i^2 - 15 i^3 + i^4)/120, i=1..n - 1 )
CROSSREFS
Sequence of denominators is in A133707.
Sequence in context: A048332 A249158 A119336 * A081710 A373933 A364455
KEYWORD
nonn,frac
AUTHOR
Olivier Gérard, Sep 20, 2007
STATUS
approved