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 A290084 #6 Aug 07 2017 23:04:50 %S A290084 1,1,1,1,1,1,1,2,1,1,1,2,1,1,4,4,1,1,1,4,6,1,1,4,1,1,1,6,1,4,1,8,10,1, %T A290084 12,6,1,1,12,8,1,6,1,10,12,1,1,8,1,1,16,12,1,1,20,12,18,1,1,8,1,1,6, %U A290084 16,12,10,1,16,22,12,1,12,1,1,20,18,30,12,1,16,1,1,1,12,16,1,28,20,1,12,12,22,30,1,36,16,1,1,30,20,1,16,1,24,24 %N A290084 a(1) = a(2) = 1; for n > 2, a(n) = A000010(n) / A270492(n). %H A290084 Antti Karttunen, <a href="/A290084/b290084.txt">Table of n, a(n) for n = 1..10000</a> %F A290084 a(1) = a(2) = 1; for n > 2, a(n) = A000010(n) / A270492(n). %o A290084 (Scheme) (define (A290084 n) (if (<= n 2) 1 (/ (A000010 n) (A270492 n)))) %Y A290084 Cf. A000010, A034380, A270492. %K A290084 nonn %O A290084 1,8 %A A290084 _Antti Karttunen_, Aug 07 2017