login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A025534 a(n) = (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,k))*L, where k = [ n/2 ], L = LCM{C(n,0), C(n,1),..., C(n,n)}. 0
1, 1, 3, 4, 17, 13, 77, 128, 334, 292, 2871, 2588, 30697, 28211, 26121, 48640, 773828, 727240, 13035026, 12337264, 11711342, 11146396, 244579999, 233836352, 1120013966, 1074836584, 3099540819, 2983938788, 83423830027, 80530073893, 2412760934249 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..30.

CROSSREFS

Sequence in context: A248240 A110983 A100560 * A082000 A100434 A096876

Adjacent sequences:  A025531 A025532 A025533 * A025535 A025536 A025537

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 16 18:14 EDT 2021. Contains 348042 sequences. (Running on oeis4.)