Number of primes <= 2^n.
0, 1, 2, 4, 6, 11, 18, 31, 54, 97, 172, 309, 564, 1028, 1900, 3512, 6542, 12251, 23000
2 seqfan posts
Wed Feb 24 19:29:10 CET 2010 [seqfan] Re: 2^n + p = prime/composite
Wed Feb 24 17:32:23 CET 2010 [seqfan] Re: 2^n + p = prime/composite
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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