Number of 4-uniform hypergraphs on n unlabeled nodes, or equivalently pure 3-dimensional simplicial complexes on n unlabeled nodes.

A051240

Number of 4-uniform hypergraphs on n unlabeled nodes, or equivalently pure 3-dimensional simplicial complexes on n unlabeled nodes.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =6a(6) =156a(7) =7013320

External references