Smallest prime of the form concatenation of prime(n) with itself followed by a 9, or 0 if no such prime exists.

A092995

Smallest prime of the form concatenation of prime(n) with itself followed by a 9, or 0 if no such prime exists.

Terms

    a(0) =29a(1) =0a(2) =59a(3) =79a(4) =11119a(5) =139a(6) =179a(7) =199a(8) =239a(10) =31319a(11) =379a(12) =419a(13) =439a(14) =479a(15) =0a(16) =599a(17) =619a(18) =67679a(19) =719a(20) =739a(21) =797979799a(22) =839a(23) =89899a(24) =979797979a(25) =1019a(26) =1039a(29) =1131139a(30) =1279a(31) =1319a(33) =1399

External references