Distance of the least reversible n-digit prime from 10^(n-1).

Terms

a(0) =1a(1) =1a(2) =1a(3) =9a(4) =7a(5) =49a(6) =33a(7) =169a(8) =7a(9) =7a(10) =207a(11) =237a(12) =91a(13) =313a(14) =261a(15) =273a(16) =79a(17) =49a(18) =2901a(19) =51a(20) =441a(21) =193a(22) =9a(23) =531a(24) =289a(25) =1141a(26) =67a(27) =909a(28) =331a(29) =753