Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a^2 + 7*b^2.
A216536
Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a^2 + 7*b^2.
Terms
- a(0) =4a(1) =5a(2) =7a(3) =11a(4) =23a(5) =43a(6) =137a(7) =359a(8) =569a(9) =571a(10) =2971a(11) =5387a(12) =25561a(13) =30757a(14) =37511a(15) =130021a(16) =148091a(17) =433781a(18) =590041a(19) =593689a(20) =604711a(21) =1049897a(22) =1285607a(23) =1636007
External references
- oeis: A216536