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Search: id:A128654
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A128654 Primes occuring in A084704 exactly thrice. +0
4
263, 821, 953, 1049, 1597, 2143, 2273, 2677, 2683, 2699, 2749, 3251, 3389, 3709, 3739, 3761, 3929, 4013, 4243, 4409, 4519, 4603, 4621, 4639, 4657, 4943, 5009, 5387, 5449, 5483, 5783, 6173, 6311, 6373, 6703, 6737, 6869, 6983, 7517, 7603, 7717, 7993 (list; graph; listen)
OFFSET

1,1

EXAMPLE

263 occurs as the 42th, 51st and 53th terms: (prime(#)+263)/2/(AT){43,52,54}= {227,251,257} primes.

CROSSREFS

Cf. A084704, A128653, A128655.

Sequence in context: A105008 A142754 A142379 this_sequence A023314 A054802 A108823

Adjacent sequences: A128651 A128652 A128653 this_sequence A128655 A128656 A128657

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)gmail.com), Mar 18 2007

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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