a(n) = 15*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 15.

A090301

a(n) = 15*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 15.

Terms

    a(0) =2a(1) =15a(2) =227a(3) =3420a(4) =51527a(5) =776325a(6) =11696402a(7) =176222355a(8) =2655031727a(9) =40001698260a(10) =602680505627

External references