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A025029

Numbers whose least quadratic nonresidue (A020649) is 29.

18191, 35279, 36382, 38639, 63839, 70558, 77278, 87481, 95471, 104711, 127678, 147671, 174962, 185641, 190942, 193751, 199559, 209422, 217439, 284231, 290351, 295342, 312311, 322559, 336361, 363359, 371282, 375359, 387502, 394969, 399118

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OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Quadratic Nonresidue.

PROG

(PARI) residue(n, m)=local(r); r=0; for(i=0, floor(m/2), if(i^2%m==n, r=1)); r

isA025029(n)=local(a); a=1; forprime(p=2, 23, a=a && residue(p, n)); a=a && !residue(29, n); a \\ Michael B. Porter, May 06 2010

(PARI) is(n)=forprime(p=2, 29, if(!issquare(Mod(p, n)), return(p==29))); 0 \\ Charles R Greathouse IV, Jan 24 2020

CROSSREFS

Cf. A020649, A025020, A025021, A025022, A025023, A025024, A025025, A025026, A025027, A025028.

Sequence in context: A390179 A205242 A172936 * A230948 A030331 A023340

Adjacent sequences: A025026 A025027 A025028 * A025030 A025031 A025032

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

URL: https://oeis.org/A025029

⇱ A025029 - OEIS