Primes with distinct digits in descending order.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =31a(5) =41a(6) =43a(7) =53a(8) =61a(9) =71a(10) =73a(11) =83a(12) =97a(13) =421a(14) =431a(15) =521a(16) =541a(17) =631a(18) =641a(19) =643a(20) =653a(21) =743a(22) =751a(23) =761a(24) =821a(25) =853a(26) =863a(27) =941a(28) =953a(29) =971