a(n) = ((3+sqrt(5))*(4+sqrt(5))^n + (3-sqrt(5))*(4-sqrt(5))^n)/2.
A163064
a(n) = ((3+sqrt(5))*(4+sqrt(5))^n + (3-sqrt(5))*(4-sqrt(5))^n)/2.
Terms
- a(0) =3a(1) =17a(2) =103a(3) =637a(4) =3963a(5) =24697a(6) =153983a(7) =960197a(8) =5987763a(9) =37339937a(10) =232854103a(11) =1452093517a(12) =9055353003a(13) =56469795337a(14) =352149479663
External references
- oeis: A163064