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A032366
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Numbers k such that 33*2^k+1 is prime.
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0
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1, 6, 13, 18, 21, 22, 25, 28, 66, 93, 118, 289, 412, 453, 525, 726, 828, 1420, 1630, 3076, 3118, 4452, 4941, 5236, 6346, 9133, 13401, 14214, 18766, 37249, 42685, 47805, 61372, 74178, 600270, 922782, 1130884, 2345001, 3176269, 3570132, 3649810
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OFFSET
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1,2
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COMMENTS
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With a(37) = 1130884 the list is complete up to 2.1*10^6, but k = 2345001, 3176269 and 3570132 are also in the sequence, cf. Ballinger & Keller link. - M. F. Hasler, Jul 20 2019
The mentioned limit up to which the list is complete, has reached about 3.7*10^6 (PrimeGrid). - Jeppe Stig Nielsen, Sep 19 2019
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LINKS
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PROG
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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EXTENSIONS
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Added more terms from the Ballinger & Keller page. - Joerg Arndt, Apr 07 2013
Added & edited links & cross-references. - M. F. Hasler, Jul 20 2019
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STATUS
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approved
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