a(0)=0, a(1)=18, a(2)=612; a(n) = 35*(a(n-1)-a(n-2))+a(n-3).

A350984

a(0)=0, a(1)=18, a(2)=612; a(n) = 35*(a(n-1)-a(n-2))+a(n-3).

Terms

    a(0) =0a(1) =18a(2) =612a(3) =20790a(4) =706248a(5) =23991642a(6) =815009580a(7) =27686334078a(8) =940520349072

External references