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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A024230 Expansion of sin(x)*sin(sinh(x))/2. 0
0, 1, -2, -21, -4, 2677, 49978, 11487, -36275464, -1538399639, -22119645578, 2006421812307, 213180133008116, 10489769063373277, -27722182352718926, -68871270400638150585, -8464386105916692002320, -535985815068329924418863 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

MATHEMATICA

Sin[ x ]*Sin[ Sinh[ x ] ]/2 (* Even Part *)

CROSSREFS

A009547.

Sequence in context: A162536 A100980 A122509 * A105666 A058261 A072397

Adjacent sequences:  A024227 A024228 A024229 * A024231 A024232 A024233

KEYWORD

sign

AUTHOR

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

EXTENSIONS

Extended with signs 03/97.

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 13:28 EST 2012. Contains 206031 sequences.