Maximal prime divisor of the average of the twin prime pairs, different from 2 and 3. In case of maximal prime divisor is 2 or 3, then a(n)=1.
1, 1, 1, 1, 5, 7, 5, 1, 17, 1, 23, 5, 5, 1, 11, 19, 5, 5, 47, 13, 29, 7, 1, 11, 29, 19, 5, 103
4 seqfan posts
Mon Jan 3 18:37:10 CET 2011 [seqfan] Re: Concerning A178668.
Mon Jan 3 16:04:39 CET 2011 [seqfan] Re: Concerning A178668.
Mon Jan 3 10:31:14 CET 2011 [seqfan] Re: Concerning A178668.
Mon Jan 3 01:04:50 CET 2011 [seqfan] Concerning A178668.
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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