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 A098203 #15 May 10 2024 03:36:46 %S A098203 1,2,12,32,240,192,4032,6912,6912,153600,435456,5529600,16773120, %T A098203 11059200,33177600,143327232,286654464,433520640,4294901760, %U A098203 2627665920,6019743744,10705305600,15925248000,15606743040,68719214592,31850496000,93640458240,100329062400,172009474560 %N A098203 Euler totient function phi values of multiperfect numbers. %H A098203 Amiram Eldar, <a href="/A098203/b098203.txt">Table of n, a(n) for n = 1..730</a> %F A098203 a(n) = A000010(A007691(n)). %Y A098203 Cf. A000010, A007691, A098204. %K A098203 nonn %O A098203 1,2 %A A098203 _Labos Elemer_, Sep 23 2004 %E A098203 More terms from _Amiram Eldar_, May 10 2024