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 A303575 #8 Apr 29 2018 12:17:46 %S A303575 101,211,23,13,41,47,67,601,109,59,251,281,881,1381,1153,1451,1471, %T A303575 2017,2203,1223,1621,1619,1229,2203,2053,5227,2267,2269,4229,1423, %U A303575 1283,2383,2333,3253,6353,3463,3347,3739,3389,1483,2441,4243,5443,4457,4447,4451 %N A303575 a(n) = prime arising when A231433(n+1) is formed (if there is more than one, use the smallest). %C A303575 Let A231433(n) = X, A231433(n+1) = Y. The digits of X and Y can be rearranged to form a prime, possibly in several ways; a(n) is the smallest such prime. %H A303575 Rémy Sigrist, <a href="/A303575/b303575.txt">Table of n, a(n) for n = 0..10000</a> %H A303575 Rémy Sigrist, <a href="/A303575/a303575.txt">C++ program for A303575</a> %o A303575 (C++) See Links section. %Y A303575 Cf. A231433. %K A303575 nonn,base %O A303575 0,1 %A A303575 _N. J. A. Sloane_, Apr 27 2018 %E A303575 More terms from _Rémy Sigrist_, Apr 29 2018