Fourth quadrisection of Jacobsthal numbers A001045: a(n)=16a(n-1)-5.

A141060

Fourth quadrisection of Jacobsthal numbers A001045: a(n)=16a(n-1)-5.

Terms

    a(0) =3a(1) =43a(2) =683a(3) =10923a(4) =174763a(5) =2796203a(6) =44739243a(7) =715827883a(8) =11453246123a(9) =183251937963

External references