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 A378657 #6 Dec 05 2024 21:49:39
%S A378657 8228,12716,17204,21692,23188,27676,30668,32164,35156,39644,44132,
%T A378657 45628,50116,53108,54604,59092,62084,66572,72556,75548,77044,80036,
%U A378657 81532,84524,94996,97988,102476,103972,111452,112948,117436,121924,124916,129404,133892,135388,142868,144364,147356,148852,157828,166804,169796
%N A378657 Numbers that are primitive Zumkeller, but not primitive non-deficient.
%H A378657 Antti Karttunen, <a href="/A378657/b378657.txt">Table of n, a(n) for n = 1..75</a>
%F A378657 {k such that A378537(k) = 1 and A341619(k) = 0}.
%o A378657 (PARI) is_A378657(n) = (A378537(n) && !A341619(n));
%Y A378657 Sequence A180332 without any terms of A006039.
%Y A378657 Setwise difference A378538 \ A378656.
%K A378657 nonn
%O A378657 1,1
%A A378657 _Antti Karttunen_, Dec 05 2024