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A035791
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Start of a string of exactly 3 consecutive (but disjoint) pairs of twin primes.
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4
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5, 179, 809, 3359, 4217, 6761, 18041, 21587, 26861, 49367, 67187, 80447, 82721, 91127, 97841, 98897, 103967, 109829, 122597, 154157, 178037, 203321, 208931, 225749, 227609, 236867, 243671, 251201, 266447, 285611, 289109, 295871, 317729
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| Posting to Number Theory List (NMBRTHRY(AT)LISTSERV.NODAK.EDU), Nov. 19 1998.
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EXAMPLE
| a(2)=179 because (179,181),(191,193),(197,199) is the second occurrence (after (5,7),(11,13),(17,19)) of exactly 3 pairs of twin primes.
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CROSSREFS
| Sequence in context: A194571 A141981 A136143 * A162136 A053363 A027572
Adjacent sequences: A035788 A035789 A035790 * A035792 A035793 A035794
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KEYWORD
| nonn
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AUTHOR
| Randall Rathbun
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EXTENSIONS
| More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), Sep 05 2003
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