This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A255596 #23 Mar 26 2015 01:50:03 %S A255596 23,47,613,1237,1759,27103,35149,45197,57269,58271,61283,85439,93487, %T A255596 145829,147853,2371489,3152087,3902687,4062791,5614073,5914327, %U A255596 7405639,8356421 %N A255596 Distinct-digit primes that are the concatenation of m and prime(m) for some number m. %e A255596 The last term is a(23) = 8356421 (prime) because all 7 digits are different and m=835 with 6421=prime(m). %t A255596 Select[FromDigits[IntegerDigits@ #~Join~IntegerDigits[Prime@ #]] & /@ %t A255596 Range@ 1200, PrimeQ@ # && Max@ DigitCount@ # == 1 &] (* _Michael De Vlieger_, Mar 25 2015 *) %Y A255596 Cf. A073643, A074665, A074667, A074669, A074671, A074673, A074675, A160402, A256339. %K A255596 nonn,base,fini,full %O A255596 1,1 %A A255596 _Zak Seidov_, Mar 25 2015