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 A087007 #27 Feb 16 2025 08:32:50 %S A087007 1,2,3,5,6,7,10,11,13,14,15,17,21,22,26,30,33,34,35,39,42,51,55,65,66, %T A087007 70,77,78,85,91,102,105,110,119,130,143,154,165,170,182,187,195,210, %U A087007 221,231,238,255,273,286,330,357,374,385,390,429,442,455,462,510,546,561 %N A087007 Divisors of 510510. %C A087007 510510 = 17# = A002110(7); %C A087007 divisors of 510510 are squarefree (A005117) and 17-smooth; %C A087007 a(A000005(510510)) = a(128) = 510510 is the last term. %H A087007 R. Zumkeller, <a href="/A087007/b087007.txt">Table of n, a(n) for n = 1..128</a> %H A087007 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Primorial.html">Primorial</a> %H A087007 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Divisor.html">Divisor</a> %H A087007 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A087007 a=510510;Divisors[a] (* _Vladimir Joseph Stephan Orlovsky_, Jan 25 2009 *) %o A087007 (PARI) divisors(510510) %Y A087007 Cf. A018255, A018336, A087005, A087006, A087008. %K A087007 nonn,fini,full,easy %O A087007 1,2 %A A087007 _Reinhard Zumkeller_, Jul 29 2003