Smallest prime which is the repeated reverse concatenation of n followed by n (ending in n), where n == 1,3,7 or 9 (mod 10), or 0 if no such prime exists.

A110408

Smallest prime which is the repeated reverse concatenation of n followed by n (ending in n), where n == 1,3,7 or 9 (mod 10), or 0 if no such prime exists.

Terms

    a(0) =11a(1) =0a(2) =0a(3) =0a(4) =0a(6) =71717117a(8) =0a(9) =32323223a(10) =0a(12) =13131331a(13) =0a(15) =0

External references