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#18 by Susanna Cuyler at Wed Jun 13 09:17:58 EDT 2018
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#17 by Jon E. Schoenfield at Tue Jun 12 23:13:17 EDT 2018
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#16 by Jon E. Schoenfield at Tue Jun 12 23:13:13 EDT 2018
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| COMMENTS
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Composite numbers n such that 66^(n-1) == 1 (mod n). [From ). - _Michel Lagneau, _, Feb 18 2012]
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| STATUS
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approved
editing
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#15 by Charles R Greathouse IV at Sun Aug 03 14:01:12 EDT 2014
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| MATHEMATICA
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base = 66; 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 *)
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Discussion
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| Sun Aug 03
| 14:01
| OEIS Server: https://oeis.org/edit/global/2267
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#14 by Russ Cox at Fri Mar 30 18:35:12 EDT 2012
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| AUTHOR
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_David W. Wilson (davidwwilson(AT)comcast.net)_
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Discussion
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| Fri Mar 30
| 18:35
| OEIS Server: https://oeis.org/edit/global/202
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#13 by T. D. Noe at Tue Feb 21 16:31:14 EST 2012
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#12 by T. D. Noe at Tue Feb 21 16:31:09 EST 2012
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| LINKS
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<a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
<a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>
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#11 by T. D. Noe at Tue Feb 21 16:30:44 EST 2012
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| COMMENTS
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Composite numbers n such that (n- 66)^(^(n-1) == 1( (mod n). [From Michel Lagneau, Feb 18 2012]
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| LINKS
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T. D. Noe, <a href="/A020194/b020194.txt">Table of n, a(n) for n = 1..1000</a>
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| MATHEMATICA
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base = 66; 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 *)
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| CROSSREFS
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Cf. A001567 (pseudoprimes to base 2).
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| STATUS
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proposed
editing
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#10 by Michel Lagneau at Sat Feb 18 11:12:38 EST 2012
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#9 by Michel Lagneau at Sat Feb 18 11:12:34 EST 2012
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| COMMENTS
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Composite numbers n such that (n-66)^(n-1) == 1( mod n). [From Michel Lagneau, Feb 18 2012]
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| STATUS
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approved
editing
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