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 A056611 #7 Oct 15 2013 22:30:53 %S A056611 1,1,1,1,1,3,3,1,1,5,5,5,5,7,7,7,7,21,21,15,5,55,165,33,33,143,143, %T A056611 1001,1001,1001,1001,91,91,221,221,221,221,323,323,323,323,2261,2261, %U A056611 24871,24871,572033,572033,81719,81719,24035,24035,312455,312455,85215 %N A056611 Quotient: squarefree kernel of A002944(n) divided by that of A001405. %F A056611 a(n)=A007947[A002944(n)]/A007947[A001405(n)] %e A056611 n=14,LCM[1,14,....,14,1]=24024,its sqf kernel is 6006; binomial[14,7]=3432,its sqf kernel is 858.a(14)=6006/858=7 %Y A056611 A002944, A001405, A007947, %K A056611 nonn %O A056611 1,6 %A A056611 _Labos Elemer_, Aug 07 2000