a(n) = a(n-1)+1, if the previous term a(n-1) and n-1-(-1)^n are coprime, else a(n)=2*n-4.
14, 16, 17, 18, 19, 20, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 52, 53, 54, 55
4 seqfan posts
Mon Nov 1 20:51:48 CET 2010 [seqfan] Re: Checking A174216
Mon Nov 1 07:58:02 CET 2010 [seqfan] Re: Checking A174216
Fri Oct 29 23:11:26 CEST 2010 [seqfan] Re: Checking A174216
Fri Oct 29 22:04:32 CEST 2010 [seqfan] Checking A174216
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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