Numbers k such that (299*10^k + 1)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =8a(6) =11a(7) =12a(8) =36a(9) =63a(10) =79a(11) =152a(12) =159a(13) =236a(14) =365a(15) =542a(16) =734a(17) =2552a(18) =9407a(19) =31832a(20) =32028a(21) =43217a(22) =51139a(23) =58893a(24) =71963a(25) =190533a(26) =197426a(27) =278546