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!)
A365897 Expansion of e.g.f. exp( Sum_{k>=0} x^(3*k+5) / (3*k+5)! ). 4
1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 126, 1, 0, 1287, 1, 126126, 10803, 1, 5513508, 87210, 488864377, 175388031, 698820, 61841343565, 5037240879, 5194678451481, 5281277511511, 139251621015, 1519441856106345, 387880753064806, 123382468421090541 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,11
LINKS
FORMULA
a(0) = 1; a(n) = Sum_{k=0..floor((n-5)/3)} binomial(n-1,3*k+4) * a(n-3*k-5).
PROG
(PARI) my(N=40, x='x+O('x^N)); Vec(serlaplace(exp(sum(k=0, N\3, x^(3*k+5)/(3*k+5)!))))
CROSSREFS
Sequence in context: A365898 A318257 A110825 * A050451 A059024 A365896
KEYWORD
nonn
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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 20 20:25 EDT 2024. Contains 374459 sequences. (Running on oeis4.)