Numbers k such that k!6 + 12 is prime, where k!6 is the sextuple factorial number (A085158 ).

Terms

a(0) =0a(1) =1a(2) =5a(3) =7a(4) =11a(5) =13a(6) =17a(7) =19a(8) =23a(9) =25a(10) =41a(11) =67a(12) =71a(13) =101a(14) =109a(15) =151a(16) =163a(17) =181a(18) =233a(19) =241a(20) =265a(21) =355a(22) =433a(23) =563a(24) =767a(25) =997a(26) =1465a(27) =1681a(28) =1861a(29) =1913