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 A278543 #5 Nov 30 2016 13:00:01 %S A278543 1,1,2,1,1,2,6,1,1,6,6,2,2,6,30,1,1,30,12,2,2,24,60,2,2,60,60,6,6,30, %T A278543 210,1,1,210,60,12,6,120,360,2,2,720,240,6,12,360,1260,2,2,1260,360, %U A278543 12,12,1080,2520,6,6,1260,1260,30,30,210,2310,1,1,2310,420,60,60,7560,7560,6,6,15120,6480,24,24,2160,37800,2,2,75600,6480,48,48,12960,90720 %N A278543 a(n) = A046523(A277198(n)). %H A278543 Antti Karttunen, <a href="/A278543/b278543.txt">Table of n, a(n) for n = 0..2048</a> %F A278543 a(n) = A046523(A277198(n)). %o A278543 (Scheme) (define (A278543 n) (A046523 (A277198 n))) %Y A278543 Cf. A046523, A260443, A277198, A277327, A277328, A278243. %K A278543 nonn %O A278543 0,3 %A A278543 _Antti Karttunen_, Nov 30 2016