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!)
A024729 a(n) = Sum_{i=1..floor((n+1)/4)} a(2*i-1) * a(n-2*i+1), with a(1)=a(2)=1 and a(3)=5. 1
1, 1, 5, 5, 5, 5, 30, 55, 80, 230, 530, 1080, 2505, 5555, 13755, 31330, 71405, 168605, 403830, 947180, 2199905, 5189130, 12724755, 30313630, 71503880, 171244630, 421182405, 1012930055, 2420011955, 5834077855, 14434795655, 34963583830 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..32.

CROSSREFS

Sequence in context: A339704 A282209 A082476 * A046271 A341600 A283076

Adjacent sequences:  A024726 A024727 A024728 * A024730 A024731 A024732

KEYWORD

nonn

AUTHOR

Clark Kimberling

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 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)