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 A113639 #9 Nov 10 2019 13:56:56 %S A113639 13069482857,16974853201,18260734519,23759084161,24785139601, %T A113639 25089467413,29384567041,38706945421,41390257861,49065821737, %U A113639 65829130417,67903858241,76953210841,98642074513,100695314287,106237698451,106751489293,110586343297,113646829507,116548907329 %N A113639 Pandigital strong pseudoprimes (base-2). %H A113639 Amiram Eldar, <a href="/A113639/b113639.txt">Table of n, a(n) for n = 1..10000</a> %e A113639 a(1) = 13069482857 is a term because 13069482857 is a strong pseudoprime (base-2) and also contains all digits from 0 to 9 so pandigital also. %Y A113639 Intersection of A171102 and A001262. %K A113639 base,nonn %O A113639 1,1 %A A113639 _Shyam Sunder Gupta_, Jan 15 2006 %E A113639 More terms from _Amiram Eldar_, Nov 10 2019