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A013926
Values of a_n = (2n)!D_{2n}, where D_{2n} = \frac{1}{\pi} \int_{x=0}^{\infty} [ 1- \frac{x^{2n}} {\prod_{j=1}^n (x^2+j^2)} ] dx.
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1, 28, 1434, 118960, 14611150, 2494744728, 565526968692, 164368956804288, 59603021615454678, 26379919529434077640, 13996517446366589638636, 8769645281519454489332448, 6406629794568469259015608204
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.
AT&T Labs Research
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