Numbers k such that 371*2^k+1 is prime.

Terms

a(0) =1a(1) =3a(2) =23a(3) =27a(4) =39a(5) =41a(6) =97a(7) =101a(8) =123a(9) =183a(10) =201a(11) =311a(12) =411a(13) =519a(14) =551a(15) =557a(16) =867a(17) =1583a(18) =1607a(19) =2007a(20) =2207a(21) =2213a(22) =5999a(23) =8253a(24) =15573a(25) =23163a(26) =29939a(27) =36371a(28) =40403a(29) =61977