a(n)=the (1,2)-entry of the n-th power of the 2 X 2 matrix [0,-1;n-1,3*(n-1)].

A109521

a(n)=the (1,2)-entry of the n-th power of the 2 X 2 matrix [0,-1;n-1,3*(n-1)].

Terms

    a(0) =-1a(1) =-3a(2) =-34a(3) =-675a(4) =-19024a(5) =-693000a(6) =-30932712a(7) =-1634065377a(8) =-99689107456

External references