Largest digit of n concatenated with smallest digit of n is prime.

Terms

a(0) =1a(1) =11a(2) =13a(3) =14a(4) =16a(5) =17a(6) =31a(7) =34a(8) =35a(9) =37a(10) =38a(11) =41a(12) =43a(13) =53a(14) =61a(15) =71a(16) =73a(17) =79a(18) =83a(19) =97a(20) =111a(21) =113a(22) =114a(23) =116a(24) =117a(25) =123a(26) =124a(27) =126a(28) =127a(29) =131