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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The first nonintegral term occurs at n=76.

LINKS

Olivier Gérard, Table of n, a(n) for n = 1..100

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 A241947 A128421

Adjacent sequences:  A133703 A133704 A133705 * A133707 A133708 A133709

KEYWORD

nonn,frac

AUTHOR

Olivier Gérard, Sep 20, 2007

STATUS

approved

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Last modified April 13 19:10 EDT 2021. Contains 342939 sequences. (Running on oeis4.)