Numbers n such that primorial(n)/2 + 256 is prime.

Terms

a(0) =1a(1) =3a(2) =6a(3) =7a(4) =8a(5) =13a(6) =22a(7) =33a(8) =53a(9) =58a(10) =62a(11) =142a(12) =189a(13) =220a(14) =479a(15) =496a(16) =503a(17) =760a(18) =1464a(19) =6503a(20) =9477a(21) =13861a(22) =23881