a(n) is the smallest m such that A002110(n) + m is prime.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =19a(8) =23a(9) =37a(10) =61a(11) =1a(12) =61a(13) =71a(14) =47a(15) =107a(16) =59a(17) =61a(18) =109a(19) =89a(20) =103a(21) =79a(22) =151a(23) =197a(24) =101a(25) =103a(26) =233a(27) =223a(28) =127a(29) =223