Numbers k such that (x^k + 1/x^k)/(x + 1/x) is prime, where x = sqrt(3) + sqrt(2).
A158892
Numbers k such that (x^k + 1/x^k)/(x + 1/x) is prime, where x = sqrt(3) + sqrt(2).
Terms
- a(0) =5a(1) =7a(2) =13a(3) =107a(4) =227a(5) =491a(6) =8009a(7) =36779a(8) =80513
External references
- oeis: A158892