a(n) = 25*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 25.

A090733

a(n) = 25*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 25.

Terms

    a(0) =2a(1) =25a(2) =623a(3) =15550a(4) =388127a(5) =9687625a(6) =241802498a(7) =6035374825a(8) =150642568127

External references