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!)
A048026 Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-2)/3. 0

%I #4 Mar 30 2012 18:56:54

%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,13,14,84,90,96,336,357,378,1008,

%T 1064,1120,2520,2646,2772,5775,6049,6324,14124,14850,15587,42042,

%U 44550,47124,144144,153439,163020,495495,527527,560560

%N Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-2)/3.

%K nonn

%O 1,17

%A _Clark Kimberling_

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 29 10:13 EDT 2024. Contains 374734 sequences. (Running on oeis4.)