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A091992
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Numbers n such that 5*n-3 and 5*n+3 are both primes.
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2
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2, 4, 8, 10, 14, 20, 22, 32, 34, 46, 52, 56, 62, 70, 74, 92, 112, 118, 122, 130, 136, 146, 172, 176, 190, 196, 218, 220, 224, 238, 244, 256, 260, 274, 286, 290, 298, 322, 332, 350, 356, 374, 382, 398, 400, 428, 442, 448, 454, 458, 476, 484, 494, 532, 536, 538
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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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Select[Range[600], PrimeQ[5*# -3] && PrimeQ[5*# +3] &] (* G. C. Greubel, Feb 05 2019 *)
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PROG
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(PARI) for(n=1, 538, if(isprime(5*n-3)&&isprime(5*n+3), print1(n, ", "))) \\ Jinyuan Wang, Feb 06 2019
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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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