Integers for which the smallest m in A040076 such that n*2^m+1 is prime (A050921) increases.
1, 3, 7, 17, 19, 31, 47, 383, 2897, 3061, 4847, 535
3 seqfan posts
Mon Sep 20 04:09:06 CEST 2010 [seqfan] Re: Nonmembers of Range of Euler Phi Function
Sun Sep 19 23:53:15 CEST 2010 [seqfan] Re: Nonmembers of Range of Euler Phi Function
Sun Sep 19 20:24:05 CEST 2010 [seqfan] Re: Nonmembers of Range of Euler Phi Function
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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