A096671 Denominators of terms in series expansion of sin(tan(x)), odd powers only.

1, 6, 40, 1008, 3456, 39916800, 566092800, 100590336000, 355687428096000, 1431118828339200, 2688996956405760000, 8617338912961658880000, 224800145555521536000000, 10888869450418352160768000000, 8841761993739701954543616000000, 4500732706172918893117440000000, 280107019961673757919941754880000000

Offset: 0

Author

N. J. A. Sloane, Aug 15 2004

Keywords

• nonn
• frac

Examples

			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.