Numbers k such that 285*2^k + 1 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =15a(4) =18a(5) =21a(6) =27a(7) =37a(8) =45a(9) =55a(10) =58a(11) =69a(12) =73a(13) =87a(14) =171a(15) =201a(16) =232a(17) =307a(18) =375a(19) =567a(20) =882a(21) =2869a(22) =3364a(23) =4071a(24) =4825a(25) =15328a(26) =20341a(27) =26641a(28) =36703a(29) =57291