A096716 - OEIS

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A096716

Denominators of terms in series expansion of tan(sin(x)).

1, 6, 40, 5040, 24192, 39916800, 6227020800, 37362124800, 355687428096000, 24329020081766400, 51090942171709440000, 2872446304320552960000, 5170403347776995328000000, 2177773890083670432153600000, 8841761993739701954543616000000, 249176928914482509628047360000000

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

OFFSET

0,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..200

EXAMPLE

tan(sin(x)) = x + 1/6*x^3 - 1/40*x^5 - 107/5040*x^7 - 73/24192*x^9 + 41897/39916800*x^11 + ...

MATHEMATICA

Denominator[Take[CoefficientList[Series[Tan[Sin[x]], {x, 0, 50}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 21 2016 *)

CROSSREFS

Cf. A096712, A096664, A096671.

Cf. A003705.