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Primes p that have Kronecker symbol (p|55) = -1.
1

%I #12 Sep 08 2022 08:45:57

%S 3,19,23,29,37,41,47,53,61,67,79,97,101,103,109,113,131,137,139,149,

%T 151,157,163,211,223,239,241,257,271,281,313,317,349,353,359,367,383,

%U 397,409,431,433,439,443,461,463,467,479,487,491,541,569,571,577,587

%N Primes p that have Kronecker symbol (p|55) = -1.

%C Originally erroneously named "Primes that are not squares mod 55", which contains this as a subsequence. - _M. F. Hasler_, Jan 18 2016

%H Vincenzo Librandi, <a href="/A191074/b191074.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[200]], JacobiSymbol[#,55]==-1&]

%o (Magma) [p: p in PrimesUpTo(587) | JacobiSymbol(p, 55) eq -1]; // _Vincenzo Librandi_, Sep 11 2012

%Y Cf. A191036.

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 25 2011

%E Definition corrected, following a suggestion from _David Broadhurst_, by _M. F. Hasler_, Jan 18 2016