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A096671 Denominators of terms in series expansion of sin(tan(x)). 13
1, 6, 40, 1008, 3456, 39916800, 566092800, 100590336000, 355687428096000, 1431118828339200, 2688996956405760000, 8617338912961658880000, 224800145555521536000000, 10888869450418352160768000000, 8841761993739701954543616000000, 4500732706172918893117440000000, 280107019961673757919941754880000000 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

EXAMPLE

x+1/6*x^3-1/40*x^5-55/1008*x^7-143/3456*x^9+...

CROSSREFS

Cf. A096664, A096712, A096716, A045688, A045689.

Cf. A003706.

Sequence in context: A186196 A196478 A001367 * A196712 A086803 A136382

Adjacent sequences:  A096668 A096669 A096670 * A096672 A096673 A096674

KEYWORD

nonn,frac

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Aug 15 2004

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Last modified February 15 09:49 EST 2012. Contains 205763 sequences.