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 A252370 #9 Dec 18 2014 02:06:42 %S A252370 0,0,0,0,1,0,0,0,0,1,0,1,0,0,1,0,2,0,1,0,0,0,0,0,1,1,0,0,0,1,0,1,0,0, %T A252370 1,2,0,0,2,0,3,0,0,1,0,1,1,0,0,0,4,0,2,5,1,0,0,0,2,0,1,0,0,6,3,0,0,0, %U A252370 0,0,4,1,0,0,1,1,2,0,0,0,5,1,0,0,0,0,1,0,0,2,2,0,1,0,0,0,6,3,0,1,7,1,0,1,0,0,0,0,0,0,1,2,0,4,0,0,8,0,0,0 %N A252370 a(n) = A243055(A251726(n)). %H A252370 Antti Karttunen, <a href="/A252370/b252370.txt">Table of n, a(n) for n = 1..10000</a> %F A252370 a(n) = A243055(A251726(n)). %F A252370 a(n) = A243055(A066048(A251726(n))). [Result depends only on the smallest and the largest prime factor of A251726(n).] %o A252370 (Scheme) (define (A252370 n) (A243055 (A251726 n))) %Y A252370 Cf. A252371, A243055, A251726, A066048. %K A252370 nonn %O A252370 1,17 %A A252370 _Antti Karttunen_, Dec 17 2014