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A097130
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Carmichael numbers that are not == 1 mod 24.
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0
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561, 2465, 2821, 8911, 29341, 62745, 63973, 101101, 162401, 188461, 314821, 512461, 656601, 1024651, 1033669, 1152271, 1193221, 1909001, 2100901, 2508013, 2531845, 3146221, 5031181, 5444489, 5481451, 6733693, 6868261, 8719309, 8927101, 9494101
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| Gorgui-Naguib and Dlay, Properties of the Euler totient function modulo 24 and some of its cryptographic implications, Cryptology Research Group, University of Newcastle-upon-Tyne, UK.
Granville, Andrew and Pomerance, Carl, Two contradictory conjectures concerning Carmichael numbers. Math. Comp. 71 (2002),no. 238, 883-908.
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LINKS
| F. Richman, Primality testing with Fermat's little theorem
Gorgui-Naguib and Dlay Properties of the Euler totient function modulo 24...?
Granville, Andrew and Pomerance, Carl, Two contradictory conjectures concerning Carmichael numbers
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FORMULA
| a(n) = if(mod(n, 24)<>1, n, 0)
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EXAMPLE
| 561 leaves 9 modulo 24, 1105 leaves 1 modulo 24, 1729 leaves 1 modulo 24, etc.
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CROSSREFS
| Cf. A002997, A097061.
Sequence in context: A131672 A083732 A135720 * A110889 A205947 A063400
Adjacent sequences: A097127 A097128 A097129 * A097131 A097132 A097133
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KEYWORD
| nonn
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AUTHOR
| Rob Hoogers (chimera(AT)chimera.fol.nl), Jul 26 2004
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EXTENSIONS
| Recomputed and edited by N. J. A. Sloane, Aug 02 2010
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