Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a^2 + 10*b^2.
A216574
Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a^2 + 10*b^2.
Terms
- a(0) =3a(1) =4a(2) =5a(3) =7a(4) =13a(5) =17a(6) =23a(7) =29a(8) =43a(9) =47a(10) =83a(11) =137a(12) =433a(13) =449a(14) =509a(15) =569a(16) =571a(17) =2971a(18) =4723a(19) =5387a(20) =9677a(21) =14431a(22) =30757a(23) =50833a(24) =104911a(25) =201107a(26) =433781a(27) =604711a(28) =931517a(29) =1049897
External references
- oeis: A216574