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A309354
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Primes of the form p+q+r where p < q < r = p+6 are consecutive primes.
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0
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23, 31, 41, 59, 131, 211, 311, 941, 1049, 1381, 1931, 2579, 3271, 3911, 4289, 4451, 4999, 6421, 6719, 8059, 8069, 9769, 10391, 10399, 10589, 11551, 12011, 14369, 16249, 20479, 23269, 23629, 26591, 27031, 28309, 31379, 33349, 33521, 35339, 35491, 39019, 41081
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OFFSET
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1,1
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LINKS
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EXAMPLE
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P = 5 (prime),
P + 2 = 7 (prime),
P + 6 = 11 (prime),
and 5 + 7 + 11 = 23 is prime and is a term.
P = 7 (prime),
P + 4 = 11 (prime),
P + 6 = 13 (prime)
and 7 + 11 + 13 = 31 is prime and is a term.
However, (p,q,r) = (13,17,19) fails because the sum is not a prime.
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MATHEMATICA
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Select[Total /@ Select[Partition[Prime@Range[2000], 3, 1], #[[3]] == 6 + #[[1]] &], PrimeQ] (* Giovanni Resta, Jul 25 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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