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A263391
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Sierpiński numbers that have at least two covering sets.
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1
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12151397, 31210219, 45181667, 56191673, 66887071, 68468753, 69169397, 71307347, 114921271, 122311103, 133228283, 152252267, 154337567, 182479909, 185282537, 192413177, 210465533, 220192013, 226521259, 235663343, 236281883, 253282909, 275248343, 282777829
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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, 12151397*2^k + 1 has a divisor in the set {3, 5, 7, 13, 19, 37, 73} and also in the set {3, 5, 7, 13, 19, 73, 109}. 12151397 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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