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A065995
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a(n) = prime(prime(n) + n).
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2
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5, 11, 19, 31, 53, 67, 89, 103, 131, 167, 181, 227, 251, 269, 293, 347, 383, 401, 443, 467, 491, 547, 577, 617, 673, 709, 733, 761, 787, 823, 929, 967, 1013, 1031, 1097, 1117, 1181, 1229, 1277, 1303, 1373, 1409, 1481, 1489, 1531, 1553, 1627, 1741, 1783
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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REFERENCES
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Popular Computing (Calabasas, CA), A Function Of Primes, Problem 206, Vol. 5 (No. 55, Oct 1977), page PC55-19. Asks for rate of growth of a(n).
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LINKS
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FORMULA
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MAPLE
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p:=ithprime; f:=n->p(p(n)+n); [seq(f(n), n=1..1000)]; # N. J. A. Sloane, Apr 16 2015
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MATHEMATICA
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PROG
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(PARI) \\ See PARI link
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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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