Zumkeller numbers: numbers n whose divisors can be partitioned into two disjoint sets whose sums are both sigma(n)/2.
6, 12, 20, 24, 28, 30, 40, 42, 48, 54, 56, 60, 66, 70, 78, 80, 84, 88, 90, 96, 102, 104
Index of A-numbers in seqfan: by ascending order
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26 seqfan posts
Mon Aug 23 05:35:32 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Mon Aug 23 00:45:33 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 20:27:01 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 19:47:01 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 19:34:50 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 19:23:48 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 03:23:46 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 03:08:46 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 03:02:24 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 22 02:40:58 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 06:49:59 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 06:35:00 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 05:19:10 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 03:50:29 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 03:19:22 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Tue Aug 3 03:16:23 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Mon Aug 2 07:39:04 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Mon Aug 2 01:06:07 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 1 23:28:29 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 1 23:21:48 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 1 21:57:38 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Sun Aug 1 21:29:52 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Fri Jul 9 16:48:33 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Fri Jul 9 00:42:57 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Thu Jul 8 22:10:20 CEST 2010 [seqfan] Re: A083207 On an observation of Frank Buss.
Thu Jul 8 20:58:38 CEST 2010 [seqfan] A083207 On an observation of Frank Buss.
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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