a(n) = L(7*n)/L(n) where L(n) = Lucas number A000204(n).

A153175

a(n) = L(7*n)/L(n) where L(n) = Lucas number A000204(n).

Terms

    a(0) =29a(1) =281a(2) =6119a(3) =101521a(4) =1875749a(5) =33281921a(6) =599786069a(7) =10745088481a(8) =192933544679

External references