Numbers k such that 3^(2k-3) + 3^(k-1) + 1 is prime.
A199191
Numbers k such that 3^(2k-3) + 3^(k-1) + 1 is prime.
Terms
- a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =10a(6) =11a(7) =41a(8) =83a(9) =160a(10) =178a(11) =526a(12) =881a(13) =2578a(14) =3772a(15) =11873
External references
- oeis: A199191