A202383 Denominators of coefficients in Taylor series expansion of log(cosec(x)*tanh(x)).

1, 6, 12, 2835, 2520, 467775, 935550, 127702575, 10216206000, 31892150847375, 18561569276250, 147926426347074375, 34806217964017500, 144228265688397515625, 9086380738369043484375, 3691877481305923483089140625, 3920955016221009644377500000, 206217727884373725983979140625, 43305722855718482456635619531250

Offset

0,2

Links

Table of n, a(n) for n=0..18.

Example

-1/6*x^2+1/12*x^4-61/2835*x^6+17/2520*x^8-1021/467775*x^10+691/935550*x^12-...

Crossrefs

Cf. A012860.

Sequence in context: A032511 A036900 A159282 * A216423 A229336 A363755

Adjacent sequences: A202380 A202381 A202382 * A202384 A202385 A202386

Keyword

nonn,frac

Author

N. J. A. Sloane, Dec 18 2011

Status

approved