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 A344764 #10 May 31 2021 15:22:31 %S A344764 1,1,1,1,1,3,1,1,1,2,1,4,1,7,5,1,1,2,1,5,3,11,1,3,1,2,1,7,1,15,1,1,11, %T A344764 2,7,4,1,19,3,5,1,2,1,4,9,23,1,16,1,2,17,13,1,27,5,8,3,2,1,15,1,31,9, %U A344764 1,5,11,1,4,23,10,1,9,1,2,3,4,7,6,1,16,1,2,1,12,17,43,29,8,1,5,13,23,3,47,19,3,1,2 %N A344764 a(n) = gcd(n, A011772(n)). %H A344764 Antti Karttunen, <a href="/A344764/b344764.txt">Table of n, a(n) for n = 1..16384</a> %H A344764 Antti Karttunen, <a href="/A344764/a344764.txt">Data supplement: n, a(n) computed for n = 1..65537</a> %F A344764 a(n) = gcd(n, A011772(n)) = gcd(A011772(n), A344763(n)) = gcd(n, A344763(n)). %o A344764 (PARI) A344764(n) = gcd(n, A011772(n)); %Y A344764 Cf. A011772, A344763, A344766. %K A344764 nonn,look %O A344764 1,6 %A A344764 _Antti Karttunen_, May 30 2021