Numbers k such that k!6 - 3 is prime, where k!6 is the sextuple factorial number (A085158).

Terms

a(0) =5a(1) =6a(2) =8a(3) =10a(4) =68a(5) =82a(6) =92a(7) =98a(8) =118a(9) =286a(10) =796a(11) =878a(12) =1360a(13) =1502a(14) =1516a(15) =1568a(16) =1646a(17) =3628a(18) =3716a(19) =4048a(20) =7982a(21) =12776a(22) =18070a(23) =20594a(24) =29902a(25) =39632a(26) =52988a(27) =53864a(28) =55610a(29) =67448