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A289110
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a(n) = number of covering sets of modulus 2*n for Sierpiński/Riesel numbers.
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0
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 23, 0, 1, 0, 0, 0
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OFFSET
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1,18
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COMMENTS
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a(36) >= 93.
Note that it is not true that a(n) = 0 unless n is a multiple of 6. For example, a(40) = 1.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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