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A270799 Artiads (A001583) congruent to 1 mod 50 and having 2 as a quintic residue. 1
3251, 4751, 14251, 17401, 21401, 27551, 32051, 32251, 36151, 36451, 42451, 51001, 52501, 54101, 55001, 56501, 59051, 60101, 61051, 83401, 104801, 113051, 116101, 119851, 121351, 170701, 174901, 178501, 178601, 179051, 182101, 185951, 190301, 202751, 213901 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Eric M. Schmidt, Table of n, a(n) for n = 1..1000

E. Lehmer, Artiads characterized, J. Math. Anal. Appl. 15 1966 118-131. See page 123.

E. Lehmer, Artiads characterized, J. Math. Anal. Appl. 15 1966 118-131 [annotated and corrected scanned copy]

PROG

(Sage) def isa(n) : return n % 50 == 1 and is_prime(n) and 2.powermod((n-1)//5, n) == 1 and fibonacci((n - 1)//5) % n == 0 # Eric M. Schmidt, Apr 01 2016

CROSSREFS

Cf. A001583.

Sequence in context: A106722 A031555 A106723 * A031735 A144936 A164077

Adjacent sequences:  A270796 A270797 A270798 * A270800 A270801 A270802

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 01 2016

EXTENSIONS

Definition edited by and more terms from Eric M. Schmidt, Apr 01 2016

STATUS

approved

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Last modified February 18 21:20 EST 2020. Contains 332028 sequences. (Running on oeis4.)