a(n) = Fibonacci(4n+1) + 2, or Fibonacci(2n-1)*Lucas(2n+2).
A081010
a(n) = Fibonacci(4n+1) + 2, or Fibonacci(2n-1)*Lucas(2n+2).
Terms
- a(0) =3a(1) =7a(2) =36a(3) =235a(4) =1599a(5) =10948a(6) =75027a(7) =514231a(8) =3524580a(9) =24157819a(10) =165580143a(11) =1134903172a(12) =7778742051a(13) =53316291175a(14) =365435296164
External references
- oeis: A081010