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 A255729 #34 Feb 23 2023 14:11:09 %S A255729 12,23,35,47,613,819,923,1029,1237,1547,1653,1759,1967,2071,2173,2489, %T A255729 2597,27103,28107,35149,39167,40173,45197,53241,57269,58271,60281, %U A255729 61283,69347,70349,72359,79401,85439,89461,90463,91467,93487,96503,98521,104569,108593 %N A255729 Distinct-digit numbers that are the concatenation of m and prime(m) for some number m. %C A255729 The sequence is complete, and the last term is a(101)=310628549 with m=3106 and prime(m)=28549. %H A255729 Zak Seidov, <a href="/A255729/b255729.txt">Table of n, a(n) for n = 1..101</a> %t A255729 Select[FromDigits[IntegerDigits@ #~Join~IntegerDigits[Prime[#]]] & /@ %t A255729 Range@ 3106, Max@ DigitCount@ # == 1 &] (* _Michael De Vlieger_, Mar 25 2015 *) %Y A255729 A255596 is a subsequence. %K A255729 nonn,base,fini,full %O A255729 1,1 %A A255729 _Zak Seidov_, Mar 25 2015