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!)
A121271 Number of different vertex-degree sequences of simple 3-uniform hypergraphs on n vertices. 0

%I #2 Feb 27 2009 03:00:00

%S 1,1,1,2,16,533,42175,5554128,1030941214

%N Number of different vertex-degree sequences of simple 3-uniform hypergraphs on n vertices.

%e a(3)=2 counts these two degree sequences: (0,0,0) and (1,1,1), the former corresponding to the empty 3-uniform hypergraph with no hyperedges and the latter for the 3-uniform hypergraph having the unique hyperedge {1,2,3}.

%Y Cf. A005155.

%K hard,more,nonn

%O 0,4

%A Caroline Klivans and Victor Reiner (reiner(AT)math.umn.edu), Aug 23 2006

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 April 24 19:06 EDT 2024. Contains 371962 sequences. (Running on oeis4.)