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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013242 arctanh(log(x+1)-tan(x))=-1/2!*x^2-6/4!*x^4+8/5!*x^5-150/6!*x^6... 0
-1, 0, -6, 8, -150, 448, -7560, 38432, -650160, 4827328, -85887648, 855019904, -16230758544, 204362847232, -4163699379840, 63548399361536, -1392682970270592, 24960951809133568, -588583828329908480 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A013235 A201387 A013236 * A169971 A000955 A027721

Adjacent sequences:  A013239 A013240 A013241 * A013243 A013244 A013245

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 06:27 EST 2012. Contains 205998 sequences.