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A264735
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a(n) = prime(2^(n-1)*(2*n-1)), n >= 1.
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1
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2, 13, 71, 263, 827, 2377, 6379, 16603, 41611, 101573, 243473, 573637, 1333613, 3065983, 6975971, 15746347, 35277211, 78510373, 173717329, 382404863, 837870343, 1828047503, 3973066781, 8604768101, 18576139177, 39983413319
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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Table[Prime[2^(n - 1)*(2*n - 1)], {n, 26}]
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PROG
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(PARI) a(n)=if(n<1, print1("Error n < 1"), prime(2^(n-1)*(2*n-1)) \\ Anders Hellström, Nov 23 2015
(Perl) use ntheory ":all"; say "$_ ", nth_prime(2**($_-1) * (2*$_-1)) for 1..50; # Dana Jacobsen, Apr 28 2017
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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