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Search: id:A061368
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| A061368 |
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Lesser of twin primes {p, p+2} such that the middle term p+1 is not square-free. |
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+0
1
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| 3, 11, 17, 59, 71, 107, 149, 179, 191, 197, 227, 239, 269, 311, 347, 419, 431, 521, 599, 659, 809, 827, 881, 1019, 1031, 1049, 1061, 1091, 1151, 1277, 1319, 1427, 1451, 1487, 1607, 1619, 1667, 1787, 1871, 1931, 1949, 1997, 2027, 2087, 2111, 2141, 2267
(list; graph; listen)
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OFFSET
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0,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,1000
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FORMULA
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Intersection[{A014574(n)}, {A013929(n)}]
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PROGRAM
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(PARI) { n=-1; forprime (p=2, 119099, if (isprime(p+2) && !issquarefree(p+1), write("b061368.txt", n++, " ", p)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 22 2009]
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CROSSREFS
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A001359, A005117, A014574, A013929.
Sequence in context: A078116 A127996 A032008 this_sequence A145701 A072982 A124787
Adjacent sequences: A061365 A061366 A061367 this_sequence A061369 A061370 A061371
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Jun 07 2001
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