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Search: id:A051642
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| A051642 |
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Values of A (the short leg) of a Pythagorean triangle with A and C (the hypotenuse) both prime and part of a twin prime. |
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+0
5
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| 3, 5, 11, 19, 29, 101, 349, 521, 569, 571, 661, 1091, 1489, 2269, 2341, 2549, 2659, 2729, 2731, 4049, 5279, 6359, 6871, 7559, 8231, 9721, 11719, 11779, 12071, 13339, 17291, 17921, 17959, 19429, 19889, 20231, 20359, 31541, 33179, 33751, 38651
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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All terms of the sequence must be part of a pythagorean triple of the form (2u-1), 2u*(u-1), (2u^2 - 2u + 1). - Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 11 2006
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CROSSREFS
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Sequence in context: A122516 A023233 A048161 this_sequence A007671 A090471 A124098
Adjacent sequences: A051639 A051640 A051641 this_sequence A051643 A051644 A051645
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KEYWORD
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nonn,easy
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AUTHOR
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Stuart M. Ellerstein (ellerstein(AT)aol.com)
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EXTENSIONS
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More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 11 2006
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