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A249180
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Primes of the form p^q - 2q, where p and q are prime.
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1
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2, 5, 233, 337, 12161, 50647, 300757, 1594297, 18191441, 31855007, 46268273, 58863863, 86938301, 95443987, 124251493, 214921793, 410172401, 714924289, 849278117, 904231057, 1102302931, 1341919721, 1672446197, 2212245121, 2588282111, 2881473961, 2918076583, 3067586671, 3532642661, 3936827533, 4243659653, 4599141241
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OFFSET
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1,1
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COMMENTS
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2 generated by (p = 2, q = 3), 5(3, 2), 233(3, 5), 337(7, 2), 12161(23, 3), 50647(37, 3), 300757(67, 3), 1594297(3, 13), ...
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LINKS
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EXAMPLE
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2 = 2^3 - 2*3.
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PROG
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(PARI) is(n)=forprime(q=2, log(n)\log(2)+2, if(isprimepower(n+2*q)==q, return(isprime(n)))); 0 \\ Charles R Greathouse IV, Oct 22 2014
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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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