Numbers k such that (2^(2k+1) - 2^(k+1) + 1)/5 is prime.
A006596
Numbers k such that (2^(2k+1) - 2^(k+1) + 1)/5 is prime.
Terms
- a(0) =2a(1) =5a(2) =6a(3) =14a(4) =21a(5) =26a(6) =141a(7) =278a(8) =281a(9) =306a(10) =345a(11) =1365a(12) =2573a(13) =2661a(14) =4766a(15) =5385
External references
- oeis: A006596