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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A009542 Expansion of e.g.f. sin(x)*exp(sinh(x)). 0
0, 1, 2, 2, 4, 16, 38, 104, 456, 1600, 6154, 29952, 131660, 644736, 3516334, 18383616, 106736272, 645554176, 3902982930, 25645936640, 170222268308, 1160636121088, 8352824699446, 60217271582720, 450765801976408 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

First negative term is a(35). - Olivier Gérard, Mar 15 1997

LINKS

Table of n, a(n) for n=0..24.

MATHEMATICA

Sin[ x ]*Exp[ Sinh[ x ] ]

PROG

(PARI) x='x+O('x^40); Vec(serlaplace(sin(x)*exp(sinh(x)))) \\ Michel Marcus, Apr 02 2017

CROSSREFS

Sequence in context: A153997 A154000 A154003 * A244108 A032318 A090753

Adjacent sequences:  A009539 A009540 A009541 * A009543 A009544 A009545

KEYWORD

sign,easy

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified May 22 20:08 EDT 2017. Contains 286906 sequences.