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 A056025 Numbers k such that k^12 == 1 (mod 13^2). 11
 1, 19, 22, 23, 70, 80, 89, 99, 146, 147, 150, 168, 170, 188, 191, 192, 239, 249, 258, 268, 315, 316, 319, 337, 339, 357, 360, 361, 408, 418, 427, 437, 484, 485, 488, 506, 508, 526, 529, 530, 577, 587, 596, 606, 653, 654, 657, 675, 677, 695, 698, 699, 746 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS From 19 to 168 inclusive, these are the numbers that 'fool' the strong pseudoprimality test described in Wilf (1986) in regards to determining whether 169 is composite or not. - Alonso del Arte, Feb 05 2012 REFERENCES Herbert S. Wilf, Algorithms and Complexity, Englewood Cliffs, New Jersey: Prentice-Hall, 1986, pp. 158-160. LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,0,0,0,0,0,0,0,1,-1). MATHEMATICA Select[ Range[ 800 ], PowerMod[ #, 12, 169 ]==1& ] PROG (PARI) is(k)=Mod(k, 169)^12==1 \\ Charles R Greathouse IV, Feb 07 2018 CROSSREFS Cf. A056021, A056022, A056024, A056026, A056027, A056028, A056031, A056034, A056035. Sequence in context: A167998 A050714 A113868 * A284670 A099954 A335347 Adjacent sequences:  A056022 A056023 A056024 * A056026 A056027 A056028 KEYWORD nonn,easy AUTHOR Robert G. Wilson v, Jun 08 2000 EXTENSIONS Definition corrected by T. D. Noe, Aug 23 2008 STATUS approved

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Last modified January 20 13:06 EST 2022. Contains 350472 sequences. (Running on oeis4.)