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 A073569 #19 Dec 09 2024 19:45:58
%S A073569 63,72,126,140,180,189,210,225,252,275,325,378,405,500,504,560,585,
%T A073569 715,756,810,819,875,891,900,1001,1080,1134,1152,1232,1292,1530,1600,
%U A073569 1650,1680,1785,1872,2093,2128,2250,2295,2340,2376,2464,2565,2574
%N A073569 Numbers k such that A002034(k) = A066272(k).
%e A073569 a(1) = 63 since A002034(63) = 7 and 63 has A066272(63) = 7 anti-divisors: {2, 5, 6, 14, 18, 25, 42}.
%Y A073569 Cf. A002034, A066272.
%K A073569 nonn
%O A073569 1,1
%A A073569 _Jason Earls_, Aug 31 2002
%E A073569 More terms from _Max Alekseyev_, Jan 31 2012
%E A073569 1 removed by _Sean A. Irvine_, Dec 09 2024