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A191054
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Primes p such that Jacobi(p,91) = 1.
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3
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5, 19, 23, 29, 31, 41, 43, 47, 53, 59, 73, 79, 83, 89, 97, 107, 113, 127, 167, 179, 191, 211, 223, 227, 229, 233, 241, 263, 271, 277, 293, 307, 337, 347, 349, 353, 373, 383, 389, 397, 409, 443, 461, 479, 491, 509, 547, 569, 571, 577, 587, 593, 599, 619, 641
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OFFSET
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1,1
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COMMENTS
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Originally incorrectly named "Primes that are squares mod 91", which is sequence A106989, and a subsequence of this one, because these primes have (p|7) = (p|13) = 1. The present sequence includes also primes with (p|7) = (p|13) = -1. - David Broadhurst and M. F. Hasler, Jan 15 2016
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LINKS
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MATHEMATICA
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Select[Prime[Range[200]], JacobiSymbol[#, 91]==1&]
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PROG
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(Magma) [p: p in PrimesUpTo(641) | JacobiSymbol(p, 91) eq 1]; // Vincenzo Librandi, Sep 10 2012
(PARI) is(p)=kronecker(p, 91)==1&&isprime(p) \\ M. F. Hasler, Jan 15 2016
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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