A013386 sec(sin(x)-tanh(x))=1+10/6!*x^6-840/8!*x^8+60870/10!*x^10...

1, 0, 0, 10, -840, 60870, -4888180, 451050730, -44615337520, 3756525622990, 121350724409140, -252176627984091950, 129656734144811047800, -57182907798391521511690, 24201188340561567892562460

Offset

0,4

Links

Table of n, a(n) for n=0..14.

Crossrefs

Sequence in context: A272854 A015093 A104906 * A013385 A013383 A013387

Adjacent sequences: A013383 A013384 A013385 * A013387 A013388 A013389

Keyword

sign

Author

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

Status

approved