login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A024300 Expansion of tan(sin(x))*sin(x)/2. 0
0, 1, 0, -16, -320, 512, 330752, 12652544, -474349568, -108303286272, -5003002773504, 1006927880388608, 231200342870589440, 5316662410642194432, -8274789542105574277120, -1938943461906570522132480 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..15.

MATHEMATICA

With[{nn=40}, Take[CoefficientList[Series[(Tan[Sin[x]]Sin[x])/2, {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Apr 10 2012 *)

CROSSREFS

Cf. A009665.

Sequence in context: A184757 A231742 A027547 * A165119 A165128 A165121

Adjacent sequences:  A024297 A024298 A024299 * A024301 A024302 A024303

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 1997

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 27 08:21 EST 2022. Contains 350606 sequences. (Running on oeis4.)