Numbers k such that 10*k - 3 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =5a(4) =7a(5) =10a(6) =11a(7) =13a(8) =14a(9) =16a(10) =17a(11) =20a(12) =23a(13) =26a(14) =28a(15) =31a(16) =32a(17) =34a(18) =35a(19) =37a(20) =40a(21) =46a(22) =47a(23) =49a(24) =55a(25) =56a(26) =58a(27) =59a(28) =61a(29) =62