A013260 Expansion of e.g.f. tan(log(x+1) - sinh(x)).

0, 0, -1, 1, -6, 23, -150, 929, -8120, 73387, -783720, 8979419, -114601608, 1572411917, -23422214816, 373361085733, -6370742969760, 115548671959175, -2223018007825536, 45175620448879391

Offset

0,5

Links

Table of n, a(n) for n=0..19.

Example

-(1/2!)*x^2 + (1/3!)*x^3 - (6/4!)*x^4 + (23/5!)*x^5 - ...

Prog

(PARI) x = 'x + O('x^30); concat([0, 0], Vec(serlaplace(tan(log(x+1) - sinh(x))))) \\ Michel Marcus, Aug 03 2018

Crossrefs

Sequence in context: A013259 A012468 A219168 * A013266 A154420 A255305

Adjacent sequences: A013257 A013258 A013259 * A013261 A013262 A013263

Keyword

sign

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Extensions

a(0)=a(1)=0 inserted and title improved by Sean A. Irvine, Aug 02 2018

Status

approved