In the sequence of positive integers add 1 to each prime number.

Terms

a(0) =1a(1) =3a(2) =4a(3) =4a(4) =6a(5) =6a(6) =8a(7) =8a(8) =9a(9) =10a(10) =12a(11) =12a(12) =14a(13) =14a(14) =15a(15) =16a(16) =18a(17) =18a(18) =20a(19) =20a(20) =21a(21) =22a(22) =24a(23) =24a(24) =25a(25) =26a(26) =27a(27) =28a(28) =30a(29) =30