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 A113644 #9 Aug 24 2020 08:52:46 %S A113644 5748693121,9146572381,13946829751,15989367241,28239546721, %T A113644 28637914561,36976452481,73487592361,79623874561,92437591681, %U A113644 95287763341,121254376891,129855637441,149378245633,189634571281,195376852441 %N A113644 Zeroless pandigital Carmichael numbers. %H A113644 Amiram Eldar, <a href="/A113644/b113644.txt">Table of n, a(n) for n = 1..10000</a> %e A113644 a(1) = 5748693121 is a term because 5748693121 is a Carmichael number and also contains all the digits from 1 to 9, so it is also a zeroless pandigital number. %Y A113644 Intersection of A002997 and A050289. %K A113644 base,nonn %O A113644 1,1 %A A113644 _Shyam Sunder Gupta_, Jan 15 2006