Squarefree Fibonacci numbers which are the product of an even number of distinct primes and whose index is also squarefree and the product of an even number of distinct primes.
A075740
Squarefree Fibonacci numbers which are the product of an even number of distinct primes and whose index is also squarefree and the product of an even number of distinct primes.
Terms
- a(0) =1a(1) =55a(2) =377a(3) =17711a(4) =121393a(5) =5702887a(6) =139583862445
External references
- oeis: A075740