Gaussian binomial coefficient [ n,3 ] for q = -3.

A015268

Gaussian binomial coefficient [ n,3 ] for q = -3.

Terms

    a(0) =1a(1) =-20a(2) =610a(3) =-15860a(4) =433771a(5) =-11662040a(6) =315323620a(7) =-8509702520a(8) =229798289941

External references