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 A181814 #4 Mar 30 2012 17:27:19 %S A181814 1,2,12,24,720,720,151200,302400,1814400,1814400,4191264000, %T A181814 4191264000,125863657920000,125863657920000,125863657920000, %U A181814 251727315840000,128509312009478400000,128509312009478400000,1246500488605217541696000000 %N A181814 a(n)=smallest integer that, when divided by any integer from 1 to n, yields a member of A025487. %F A181814 If A003418(n) = Product p(i)^e(i), then a(n) = Product A002110(i)^e(i). I.e., a(n) = A108951(A003418(n)). %F A181814 a(n) = A003418(n)*A181813(n). %e A181814 For integers k= 1 to 6, 720/k (720, 360, 240, 180, 144, 120) is always a member of A025487. 720 is the smallest integer with this property; therefore, a(6) = 720. %Y A181814 All terms also belong to A181818. %K A181814 nonn %O A181814 1,2 %A A181814 _Matthew Vandermast_, Nov 30 2010