

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
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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 118131. See page 123.
E. Lehmer, Artiads characterized, J. Math. Anal. Appl. 15 1966 118131 [annotated and corrected scanned copy]


PROG

(Sage) def isa(n) : return n % 50 == 1 and is_prime(n) and 2.powermod((n1)//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



