A045689 Denominators of expansion of tan(sin(x)) - sin(tan(x)).

1, 1, 1, 30, 756, 75600, 7392, 54486432000, 4358914560, 1905468364800, 7602818775552000, 6690480522485760000, 4616431560515174400000, 226851446883715670016000000, 127036810254880775208960000, 2210440498434925488635904000000, 646080179971122507107008512000000

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Examples

			1/30*x^7 + 29/756*x^9 + 1913/75600*x^11 + O(x^12).
		

References

• V. I. Arnold, Huygens and Barrow, Newton and Hooke, Birkhäuser, Basel, 1990.

Crossrefs

Cf. A045688, A096664, A096671, A096712, A096716.