Beginning with 11, least prime such that concatenation of first n terms and its digit reversal both are primes.
A380227
Beginning with 11, least prime such that concatenation of first n terms and its digit reversal both are primes.
Terms
- a(0) =11a(1) =3a(2) =11a(3) =31a(4) =59a(5) =463a(6) =131a(7) =103a(8) =599a(9) =3253a(10) =7649a(11) =439a(12) =12791a(13) =2953a(14) =17321a(15) =16651a(16) =10007a(17) =51787a(18) =4871a(19) =1483a(20) =6857a(21) =15649a(22) =53051a(23) =61441a(24) =84449a(25) =35533a(26) =19913a(27) =39097a(28) =23081a(29) =206527
External references
- oeis: A380227