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A014949
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Numbers k that divide 8^k - 1.
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16
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1, 7, 49, 343, 889, 2359, 2401, 6223, 16513, 16807, 43561, 112903, 115591, 117649, 299593, 304927, 790321, 794983, 809137, 823543, 2033143, 2097151, 2134489, 5532247, 5564881, 5663959, 5764801, 13549249, 14232001, 14338681, 14680057, 14941423, 34591207, 38048311, 38725729
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OFFSET
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1,2
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COMMENTS
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7 divides a(n) for n>1.
Prime divisors of a(n) in the order of their first appearance are {7, 127, 337, 2287, 15241, 14407, 18199, 42463, ...}. (End)
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LINKS
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PROG
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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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