a(n) = p.q in decimal notation where p = prime(n) and q is the smallest prime (A066065(n)) such that the concatenation p.q is a prime.
A066064
a(n) = p.q in decimal notation where p = prime(n) and q is the smallest prime (A066065(n)) such that the concatenation p.q is a prime.
Terms
- a(0) =23a(1) =37a(2) =53a(3) =73a(4) =113a(5) =137a(6) =173a(7) =193a(8) =233a(9) =293a(10) =313a(11) =373a(12) =4111a(13) =433a(14) =4723a(15) =5323a(16) =593a(17) =613a(18) =673a(19) =7129a(20) =733a(21) =797a(22) =8311a(23) =8923a(24) =977a(25) =1013a(26) =1033a(27) =10711a(28) =1093a(29) =11311
External references
- oeis: A066064