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A046989 Denominators of Taylor series expansion of log(x/sin x). 2
1, 6, 180, 2835, 37800, 467775, 3831077250, 127702575, 2605132530000, 350813659321125, 15313294652906250, 147926426347074375, 2423034863565078262500, 144228265688397515625, 3952575621190533915703125, 84913182070036240111050234375, 999843529136357459316262500000 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

L. V. Ahlfors, Complex Analysis, McGraw-Hill, 1979, p. 205

T. J. I'a. Bromwich, Introduction to the Theory of Infinite Series, Macmillan, 2nd. ed. 1949, p. 222, series for log(H(x)/x).

L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 88.

CRC Standard Mathematical Tables and Formulae, 30th ed. 1996, p. 42.

EXAMPLE

log(x/sin(x)) = 1/6*x^2+1/180*x^4+1/2835*x^6+1/37800*x^8+1/467775*x^10+...

CROSSREFS

Cf. A046988.

Sequence in context: A165928 A024278 A062240 * A135395 A141121 A176730

Adjacent sequences:  A046986 A046987 A046988 * A046990 A046991 A046992

KEYWORD

nonn,easy,frac,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.