A020210 Pseudoprimes to base 82.

9, 25, 27, 45, 81, 91, 225, 249, 325, 405, 481, 511, 561, 645, 747, 793, 891, 925, 949, 1105, 1245, 1247, 1345, 1377, 1387, 1431, 1525, 1541, 1729, 1825, 2025, 2071, 2101, 2241, 2257, 2421, 2465, 2701, 2821, 2871, 2905, 3825, 4033, 4239, 4453, 5185, 5611

Offset

1,1

Comments

Composite numbers n such that 82^(n-1) == 1 (mod n). - Michel Lagneau, Feb 18 2012

Links

T. D. Noe, Table of n, a(n) for n = 1..1000

Index entries for sequences related to pseudoprimes

Mathematica

base = 82; t = {}; n = 1; While[Length[t] < 100, n++; If[! PrimeQ[n] && PowerMod[base, n-1, n] == 1, AppendTo[t, n]]]; t (* T. D. Noe, Feb 21 2012 *)

Crossrefs

Cf. A001567 (pseudoprimes to base 2).

Sequence in context: A268576 A053850 A225498 * A275196 A325373 A062739

Adjacent sequences: A020207 A020208 A020209 * A020211 A020212 A020213

Keyword

nonn

Author

David W. Wilson

Status

approved