Numbers n such that n and n+1 have same sum of divisors.
14, 206, 957, 1334, 1364, 1634, 2685, 2974, 4364, 14841, 18873, 19358, 20145
5 seqfan posts
Wed Oct 6 08:40:02 CEST 2010 [seqfan] A175874: more terms?
Tue Jan 5 22:08:05 CET 2010 [seqfan] Re: A002961: sigma(n)=sigma(n+1).
Tue Jan 5 22:39:15 CET 2010 [seqfan] Re: A002961: sigma(n)=sigma(n+1).
Tue Jan 5 21:22:48 CET 2010 [seqfan] Re: A002961: sigma(n)=sigma(n+1).
Tue Jan 5 20:02:19 CET 2010 [seqfan] A002961: sigma(n)=sigma(n+1).
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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