LINKS
Amiram Eldar, <a href="/A153581/b153581_1.txt">Table of n, a(n) for n = 1..1077</a> (terms 1..125 from Robert G. Wilson v)
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Revision History for A153581
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
Pseudoprimes to bases 2,3,5 and 7 which are not Carmichael numbers (A002997).
(history; published version)
(history; published version)
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MATHEMATICA
fQ[n_] := ! PrimeQ[n] && PowerMod[2, n - 1, n] == 1 && PowerMod[3, n - 1, n] == 1 && PowerMod[5, n - 1, n] == 1 && PowerMod[7, n - 1, n] == 1 && Mod[n, CarmichaelLambda[n]] != 1; Select[ Range[ 365000000], fQ] (* Ray Chandler, Dec 28 2008; corrected by Robert G. Wilson v, Sep 01 2014 *)
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LINKS
Amiram Eldar, <a href="/A153581/b153581_1.txt">Table of n, a(n) for n = 1..1077</a> (terms 1..125 from Robert G. Wilson v)
LINKS
Robert G. Wilson v, Amiram Eldar, <a href="/A153581/b153581_1.txt">Table of n, a(n) for n = 1..1251077</a>
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editing
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COMMENTS
Terms congruent to 5 (mod 6): 468950021, 493108481, 659846021, 5936122901, 8144063621, …, . .. - Robert G. Wilson v, Sep 03 2014
Terms not congruent to 1 (mod 12): 468950021, 493108481, 643767931, 659846021, 773131927, 5779230451, 5936122901, 7294056727, 8144063621, 9671001451, …, . .. - Robert G. Wilson v, Sep 03 2014
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approved
editing