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A092738
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Primes of the form prime(x)+prime(x+1)+1.
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8
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13, 19, 31, 37, 43, 53, 61, 79, 101, 113, 139, 163, 173, 199, 211, 223, 241, 269, 277, 331, 353, 373, 397, 457, 463, 509, 521, 541, 577, 601, 619, 631, 727, 773, 787, 811, 829, 853, 883, 907, 919, 947, 967, 991, 1013, 1031, 1181, 1193, 1201, 1231, 1237
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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f[n_] := Prime[n] + Prime[n + 1] + 1; f[ # ] & /@ Select[ Range[120], PrimeQ[ f[ # ]] &] (* Robert G. Wilson v, Apr 14 2004 *)
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PROG
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(PARI) list(lim)=my(v=List(), p=2, t); forprime(q=3, , t=p+q+1; if(t>lim, return(Vec(v))); if(isprime(t), listput(v, t))) \\ Charles R Greathouse IV, Mar 19 2013
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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