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Search: id:A070174
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| A070174 |
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Primes p such that (p^2)! and 2^(p^2)-1 are not relatively primes. |
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+0
1
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| 2, 3, 11, 23, 29, 37, 43, 73, 79, 83, 113, 131, 151, 179, 191, 197, 211, 223, 233, 239, 251, 263, 283, 317, 337, 359, 367, 397, 419, 431, 443, 461, 463, 487, 491, 499, 547, 557, 571, 577, 593, 601, 617, 619, 641, 659, 683, 719
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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If q is an odd prime (p^2)! and q^(p^2)-1 are not relatively primes for any p prime.
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PROGRAM
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(PARI) forprime(n=1, 263, if(gcd((n^2)!, 2^(n^2)-1)>1, print1(n, ", ")))
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CROSSREFS
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Cf. A069180.
Adjacent sequences: A070171 A070172 A070173 this_sequence A070175 A070176 A070177
Sequence in context: A118595 A057135 A104075 this_sequence A080153 A040124 A082739
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), May 06 2002
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EXTENSIONS
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More terms from Ralf Stephan (ralf(AT)ark.in-berlin.de), Oct 14 2002
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