Numbers n such that 6n+1 is nonprime.
0, 4, 8, 9, 14, 15, 19, 20, 22, 24, 28, 29, 31, 34, 36, 39, 41, 42, 43, 44, 48, 49, 50, 53
2 seqfan posts
Fri Jan 30 15:12:53 CET 2009 [seqfan] R: Seqfan Digest, Vol 4, Issue 19
Sat Jan 24 16:18:52 CET 2009 [seqfan] Re: [OEIS] Wrong comments
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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