a(n) = L(L(n)), where L(n) are Lucas numbers A000032.

A005371

a(n) = L(L(n)), where L(n) are Lucas numbers A000032.

Terms

    a(0) =3a(1) =1a(2) =4a(3) =7a(4) =29a(5) =199a(6) =5778a(7) =1149851a(8) =6643838879

External references