Carlitz-Riordan q-Catalan numbers (recurrence version) for q=-2.

A015097

Carlitz-Riordan q-Catalan numbers (recurrence version) for q=-2.

Terms

    a(0) =1a(1) =1a(2) =-1a(3) =-7a(4) =47a(5) =873a(6) =-26433a(7) =-1749159a(8) =220526159a(9) =56904690761

External references