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!)
A013378 cos(sin(x)-arcsinh(x))=1-8064/10!*x^10+1419264/12!*x^12... 0
1, 0, 0, 0, 0, -8064, 1419264, -262662400, 59455492096, -16726941245440, 5796860719775744, -2439524053684551680, 1228699611612771516416, -730845840019971307929600, 507327256430827248463380480 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

LINKS

Table of n, a(n) for n=0..14.

FORMULA

a(n) ~ (-1)^n * sinh(Pi/2-sinh(1)) * 2^(2*n) * n^(2*n-1) / exp(2*n). - Vaclav Kotesovec, Nov 01 2013

MATHEMATICA

Table[n!*SeriesCoefficient[Cos[Sin[x]-ArcSinh[x]], {x, 0, n}], {n, 0, 40, 2}] (* Vaclav Kotesovec, Nov 01 2013 *)

CROSSREFS

Sequence in context: A159224 A234446 A318104 * A013458 A172775 A172843

Adjacent sequences:  A013375 A013376 A013377 * A013379 A013380 A013381

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 26 08:00 EDT 2022. Contains 354077 sequences. (Running on oeis4.)