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 A120674 #3 Mar 30 2012 17:36:44 %S A120674 1,12,132,12348,123540,1234560,123487560,123487560,1234759680 %N A120674 Least number with distinct digits including digits 1,2,...,n and divisible by each of 1,2,...,n. %C A120674 The first three terms are Lynch-Bell numbers (A115569). %e A120674 a(4) = 12348 as it is the least positive integer with no duplicate digits, including at least one of each decimal digit 1, 2, 3 and 4 and which is also divisible by each of these same numbers. (12348 is not divisible by 8.). %Y A120674 Cf. A120673 (same but digits need not be distinct), A115569. %K A120674 base,fini,full,nonn %O A120674 1,2 %A A120674 _Rick L. Shepherd_, Jun 23 2006