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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.

A378599 Numbers whose divisors can be partitioned into two disjoint sets with the same sum in an odd number of ways.

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%I A378599 #13 Dec 04 2024 15:44:17
%S A378599 6,12,20,24,28,30,48,56,60,70,80,88,90,96,104,140,156,168,176,180,192,
%T A378599 208,210,216,224,234,252,270,272,280,300,304,312,320,336,350,352,360,
%U A378599 368,384,396,408,420,432,448,464,468,476,480,496,504,532,550,552,560,612,630,644,650,696,700,720,728,736,760,768
%N A378599 Numbers whose divisors can be partitioned into two disjoint sets with the same sum in an odd number of ways.
%C A378599 {k such that A083206(k) is odd}.
%H A378599 Antti Karttunen, <a href="/A378599/b378599.txt">Table of n, a(n) for n = 1..13313</a>
%o A378599 (PARI) is_A378599 = A378598;
%Y A378599 Cf. A083206, A083209 (subsequence), A378598 (characteristic function).
%Y A378599 Subsequence of A083207, Zumkeller numbers.
%K A378599 nonn
%O A378599 1,1
%A A378599 _Antti Karttunen_, Dec 03 2024