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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A009035 Expansion of cos(ln(1+x)^2). 0
1, 0, 0, 0, -12, 120, -1020, 8820, -79548, 746928, -7222560, 70422000, -663291552, 5383325376, -19385922192, -677619961200, 27837247597392, -777514428757632, 19561790897109504, -475628128967428992, 11488209552378045888 (list; graph; refs; listen; history; internal format)
OFFSET

0,5

MATHEMATICA

Cos[ Log[ 1+x ]^2 ]

CROSSREFS

Sequence in context: A059155 A012443 A012274 * A009140 A012273 A008465

Adjacent sequences:  A009032 A009033 A009034 * A009036 A009037 A009038

KEYWORD

sign,easy

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gerard.

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 14 11:17 EST 2012. Contains 205623 sequences.