Least number k>1 such that k+10^n is a symmetric prime with symmetric digits (i.e. such that k+10^n is in A007500).
A122490
Least number k>1 such that k+10^n is a symmetric prime with symmetric digits (i.e. such that k+10^n is in A007500).
Terms
- a(0) =3a(1) =7a(2) =9a(3) =7a(4) =49a(5) =33a(6) =169a(7) =7a(8) =7a(9) =207a(10) =237a(11) =91a(12) =313a(13) =261a(14) =273a(15) =79a(16) =49a(17) =2901a(18) =51a(19) =441a(20) =193a(21) =9a(22) =531a(23) =289a(24) =1141a(25) =67a(26) =909a(27) =331a(28) =753a(29) =2613
External references
- oeis: A122490