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 A374129 #13 Jul 07 2024 13:34:51 %S A374129 2,3,4,5,6,7,8,10,11,13,14,15,17,19,21,22,23,26,28,29,31,33,34,35,37, %T A374129 38,39,41,43,46,47,51,53,55,57,58,59,61,62,65,67,69,71,73,74,77,79,82, %U A374129 83,85,86,87,89,91,93,94,95,97,101,103,106,107,109,111,113,115,118,119,122,123,127,129,131,133,134,137 %N A374129 Numbers k for which gcd(A075255(k), A374127(k)) = abs(A374127(k)); numbers k such that A075255(k) is a multiple of A374127(k). %C A374129 Agrees on many terms with A084116, but this includes 4, which A084116 doesn't have, and this has 28 instead of 27, doesn't have 125 nor 343, has 496 (which A084116 doesn't have), etc. %H A374129 Antti Karttunen, <a href="/A374129/b374129.txt">Table of n, a(n) for n = 1..20000</a> %o A374129 (PARI) isA374129 = A374128; %Y A374129 Cf. A000203, A001414, A075254, A084116, A086665, A374127, A374128 (characteristic function). %Y A374129 Subsequences: A000396, A374138 (terms with bigomega(n) > 2). %K A374129 nonn %O A374129 1,1 %A A374129 _Antti Karttunen_, Jul 06 2024