Numbers n such that sigma(n+2) = sigma(n+1) + sigma(n).
1, 2, 22, 1966, 3262, 5014, 60454, 1016506, 4420162, 12055510, 14365606
6 seqfan posts
Thu Aug 19 18:33:40 CEST 2010 [seqfan] Re: A104149 More terms
Thu Aug 19 18:33:40 CEST 2010 [seqfan] Re: A104149 More terms
Thu Aug 19 16:41:56 CEST 2010 [seqfan] Re: A104149 More terms
Thu Aug 19 16:36:32 CEST 2010 [seqfan] Re: A104149 More terms
Thu Aug 19 16:03:00 CEST 2010 [seqfan] A104149 More terms
Tue Aug 17 21:43:48 CEST 2010 [seqfan] Re: not all prime
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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