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A329158
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Let P1>=3, P2, P3 be consecutive primes, with P3-P2=2. a(n)=(P2+P3)/12 when P2-P1 sets a record.
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8
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1, 2, 5, 25, 87, 192, 500, 1158, 1668, 4217, 4713, 5955, 17127, 28905, 61838, 76967, 96147, 139725, 260342, 1061923, 1205080, 4663498, 8871842, 11732765, 32534740, 42313103, 77638122, 92523718, 282054523, 728833340, 2940948542, 3344803093, 11810906035
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OFFSET
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1,2
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COMMENTS
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6*a(n)-1, 6*a(n)+1 are twin primes such that the prime gap immediately preceding 6*a(n)-1 sets a record. The corresponding gap lengths are provided in A329159.
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LINKS
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PROG
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(PARI) p1=3; p2=5; r=0; forprime(p3=7, 1e9, if(p3-p2==2, d=p2-p1; if(d>r, r=d; print1((p2+p3)/12, ", "))); p1=p2; p2=p3)
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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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