Primes that remain prime through 4 iterations of function f(x) = 10x + 3.

Terms

a(0) =2a(1) =10061a(2) =11777a(3) =17489a(4) =17839a(5) =19379a(6) =19441a(7) =20071a(8) =21773a(9) =30809a(10) =32069a(11) =36529a(12) =39511a(13) =40973a(14) =45503a(15) =52223a(16) =66943a(17) =83813a(18) =100613a(19) =112213a(20) =120067a(21) =135089a(22) =144427a(23) =151573a(24) =156887a(25) =161093a(26) =164999a(27) =179111a(28) =179497a(29) =185923