References to A153380

Numbers n such that 10*n+9 is not prime.
0, 3, 4, 6, 9, 11, 12, 15, 16, 18, 20, 21, 24, 25, 27, 28, 29, 30, 31, 32, 33, 36, 39, 42


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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