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 A180326 #3 Mar 30 2012 17:22:56 %S A180326 55,592,655,1255,779,1343,117,1081,685,4183,497,85,7975,2233,209,7648, %T A180326 17708,14231,10741,11017,23171,4471,70135,77155,22825,44551,27341, %U A180326 4786,31441,893,75049,76241,78023,79453,80417,166991,90763,7645,54982,112277 %N A180326 The non-common part of the smaller number of an amicable pair. %C A180326 All terms are composite numbers. Very few duplicates occur: for the amicable numbers less than 10^14, a number appears at most twice. %H A180326 T. D. Noe, <a href="/A180326/b180326.txt">Table of n, a(n) for n=1..10000</a> %F A180326 a(n) = A002025(n) / gcd(A002025(n),A002046(n)) = A002025(n) / A061469(n). %Y A180326 Cf. A180327 (non-common part of the larger number of an amicable pair) %K A180326 nonn %O A180326 1,1 %A A180326 _T. D. Noe_, Sep 07 2010