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Search: id:A098038
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| A098038 |
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Numbers p such that p = (prime(n)+ prime(n+2))/2 is prime for prime indices n=2, 3, 5... |
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+0
1
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| 5, 373, 593, 1223, 1511, 1747, 2903, 4409, 5113, 5387, 5563, 5807, 6317, 6367, 9871, 11933, 12653, 13043, 13177, 16097, 18223, 18731, 20347, 20731, 22073, 23893, 24077, 24677, 28069, 30097, 35317, 36313, 40283, 40471, 41479, 41603, 42187
(list; graph; listen)
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OFFSET
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2,1
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EXAMPLE
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prime(73)+ prime(75) = 746. 746/2 = 373, the second term in the table.
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PROGRAM
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(PARI) g(n, m) = forprime(x=1, n, y=(prime(x)+prime(x+m)); if(y%2==0&isprime(y/2), print1(y\2", ")))
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CROSSREFS
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Adjacent sequences: A098035 A098036 A098037 this_sequence A098039 A098040 A098041
Sequence in context: A006430 A007667 A121668 this_sequence A072172 A100474 A152438
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Sep 10 2004
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