Numbers k such that (94*10^k - 7) / 3 is prime.

Terms

a(0) =0a(1) =1a(2) =4a(3) =5a(4) =9a(5) =16a(6) =20a(7) =41a(8) =43a(9) =63a(10) =127a(11) =159a(12) =413a(13) =1591a(14) =1812a(15) =2031a(16) =2315a(17) =2437a(18) =4177a(19) =4860a(20) =5771a(21) =7060a(22) =7389a(23) =9925a(24) =34103a(25) =115879