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Search: id:A033181
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| A033181 |
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Composite n such that abs(a^((n-1)/2) mod n) <> 1 for all a with (a,n) = 1. |
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+0
2
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| 1729, 2465, 15841, 41041, 46657, 75361, 162401, 172081, 399001, 449065, 488881, 530881, 656601, 670033, 838201, 997633
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OFFSET
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1,1
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COMMENT
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Sequence of absolute Euler pseudoprimes c, with property that their prime factors pn-1 divide (c-1)/2). E.g. 2465 = 5*17*29; 1232/4 = 308; 1232/16 = 77; 1232/28 = 44 - Karsten Meyer (arbol01(AT)gmx.de), Nov 08 2005
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CROSSREFS
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Sequence in context: A044883 A154717 A051388 this_sequence A154729 A083737 A138129
Adjacent sequences: A033178 A033179 A033180 this_sequence A033182 A033183 A033184
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KEYWORD
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nonn
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AUTHOR
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David Leslie. (dsl20(AT)cam.ac.uk)
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