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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A365911 Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(4*k+3) / (4*k+3)! ). 4
 1, 0, 0, 1, 0, 0, 20, 1, 0, 1680, 240, 1, 369600, 102960, 4160, 168168001, 76876800, 7743840, 137225153280, 93117024001, 17091609600, 182510023324320, 172080261401600, 49615854288001, 369403226582016000, 461748751736204400, 191552892427653120 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..498 FORMULA a(0) = 1; a(n) = Sum_{k=0..floor((n-3)/4)} binomial(n,4*k+3) * a(n-4*k-3). E.g.f.: 1 / ( 1 - (sinh(x) - sin(x))/2 ). PROG (PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(1/(1-(sinh(x)-sin(x))/2))) CROSSREFS Cf. A102233, A332258, A365912. Cf. A352429, A365917. Cf. A307978. Sequence in context: A298672 A198800 A060430 * A040404 A040405 A040406 Adjacent sequences: A365908 A365909 A365910 * A365912 A365913 A365914 KEYWORD nonn,easy AUTHOR Seiichi Manyama, Sep 22 2023 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.

Last modified July 21 06:08 EDT 2024. Contains 374463 sequences. (Running on oeis4.)