Number of vertices of type C at level n of the hyperbolic Pascal pyramid.

A292292

Number of vertices of type C at level n of the hyperbolic Pascal pyramid.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =3a(5) =9a(6) =34a(7) =174a(8) =1128a(9) =8251a(10) =63315a(11) =494175a(12) =3879370a(13) =30512736a(14) =240149088a(15) =1890487729a(16) =14883249459a(17) =117174190329a(18) =922506823618

External references