Sum of values of vertices of type A at level n of the hyperbolic Pascal pyramid.

A292295

Sum of values of vertices of type A at level n of the hyperbolic Pascal pyramid.

Terms

    a(0) =0a(1) =0a(2) =6a(3) =18a(4) =54a(5) =174a(6) =582a(7) =1974a(8) =6726a(9) =22950a(10) =78342a(11) =267462a(12) =913158a(13) =3117702a(14) =10644486a(15) =36342534a(16) =124081158a(17) =423639558a(18) =1446395910a(19) =4938304518a(20) =16860426246a(21) =57565095942a(22) =196539531270a(23) =671027933190

External references