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A263392
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Riesel numbers that have at least two covering sets.
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2
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66837283, 68026001, 71344361, 71604733, 74477159, 94270439, 97579567, 122606647, 140022313, 153196541, 170969579, 182720077, 198885523, 211327993, 220316413, 227116031, 280536071, 285155137, 290419777, 292202437, 293175191, 309240779, 324576431, 331006603
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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EXAMPLE
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For every k >= 1, 97579567*2^k - 1 has a divisor in the set {3, 5, 7, 13, 17, 241} and also in the set {3, 5, 13, 17, 97, 241, 257}. 97579567 is therefore in the sequence.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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