Primes with eight embedded primes.

Terms

a(0) =12373a(1) =12379a(2) =12713a(3) =13171a(4) =15233a(5) =17333a(6) =17359a(7) =17971a(8) =19373a(9) =19379a(10) =21139a(11) =21319a(12) =22973a(13) =23167a(14) =23197a(15) =23311a(16) =23473a(17) =23537a(18) =23593a(19) =23671a(20) =23677a(21) =23761a(22) =23773a(23) =23977a(24) =24113a(25) =24137a(26) =24179a(27) =24197a(28) =24317a(29) =24337