login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A012672 arcsinh(tanh(x)*tan(x))=2/2!*x^2-8/6!*x^6+82592/10!*x^10... 0
2, -8, 82592, -608724608, 22327881339392, -1873956615576209408, 347762137588896627924992, -121417393113776577986657681408 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A046967 A007753 A081979 * A024340 A012667 A124075

Adjacent sequences:  A012669 A012670 A012671 * A012673 A012674 A012675

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 12:38 EST 2012. Contains 206021 sequences.