Carlitz-Riordan q-Catalan numbers for q=3.

A015084

Carlitz-Riordan q-Catalan numbers for q=3.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =43a(4) =1252a(5) =104098a(6) =25511272a(7) =18649337311

External references