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A263718
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n such that (1+2*7^n)/3 is prime.
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0
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1, 3, 4, 15, 24, 58, 168, 234, 324, 375, 3327, 5788, 8344, 15039, 59116, 62620
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OFFSET
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1,2
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COMMENTS
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The numbers corresponding to a(11)-a(16) are only (extra-strong BPSW) probable primes. - Charles R Greathouse IV, Nov 10 2015
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LINKS
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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