Numbers k such that 27^k + 2 is prime.

Terms

a(0) =0a(1) =1a(2) =5a(3) =8a(4) =12a(5) =21a(6) =41a(7) =42a(8) =81a(9) =105a(10) =121a(11) =377a(12) =501a(13) =2401a(14) =14597a(15) =35381a(16) =59476a(17) =120536