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Search: id:A089168
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| A089168 |
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Solutions x for x^3-1 = kp where p is prime and k=1,2... |
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+0
1
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| 3, 5, 15, 17, 7, 21, 27, 33, 13, 41, 19, 9, 57, 59, 5, 69, 11, 71, 75, 77, 89, 31, 99, 101, 9, 105, 111, 7, 117, 119, 43, 131, 141, 143, 147, 153, 23, 155, 161, 167, 173, 189, 11
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) xpm1(n, m, pow) = { forstep(k=2, m, 2, forstep(x=1, n, 2, y= x^pow - 1; z=floor(y/k); if(floor(y/k)*k==y, if(isprime(z), print1(x", ") ) ) ) )
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CROSSREFS
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Sequence in context: A093015 A066420 A102582 this_sequence A103127 A103192 A097856
Adjacent sequences: A089165 A089166 A089167 this_sequence A089169 A089170 A089171
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Dec 07 2003
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