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 A303576 #9 Apr 29 2018 12:17:18 %S A303576 13,23,29,59,151,181,281,241,47,67,601,1013,1153,1451,1471,1187,1861, %T A303576 1619,1129,2221,2203,2003,2203,2243,4229,2269,2267,5227,1523,1283, %U A303576 2383,2333,3253,6353,3463,3347,3739,3389,1483,2441,4243,5443,4457,4447,4451,4051 %N A303576 a(n) = prime arising when A231442(n+1) is formed (if there is more than one, use the smallest). %C A303576 Let A231442(n) = X, A231442(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 A303576 Rémy Sigrist, <a href="/A303576/b303576.txt">Table of n, a(n) for n = 1..10000</a> %H A303576 Rémy Sigrist, <a href="/A303576/a303576.txt">C++ program for A303576</a> %o A303576 (C++) See Links section. %Y A303576 Cf. A231442. %K A303576 nonn,base %O A303576 1,1 %A A303576 _N. J. A. Sloane_, Apr 27 2018 %E A303576 More terms from _Rémy Sigrist_, Apr 29 2018