Primes that remain prime when a single digit 3 is inserted between any two consecutive digits or as the leading or trailing digit.
A215419
Primes that remain prime when a single digit 3 is inserted between any two consecutive digits or as the leading or trailing digit.
Terms
- a(0) =7a(1) =11a(2) =17a(3) =31a(4) =37a(5) =73a(6) =271a(7) =331a(8) =359a(9) =373a(10) =673a(11) =733a(12) =1033a(13) =2297a(14) =3119a(15) =3461a(16) =3923a(17) =5323a(18) =5381a(19) =5419a(20) =6073a(21) =6353a(22) =9103a(23) =9887a(24) =18289a(25) =23549a(26) =25349a(27) =31333a(28) =32933a(29) =33349
External references
- oeis: A215419