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A177817
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Numbers k such that k^3 divides 17^(k^2) + 1.
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9
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1, 3, 9, 21, 39, 63, 117, 273, 819, 1467, 2067, 3081, 4269, 6201, 7299, 9243, 10269, 12807, 14469, 16959, 19071, 20421, 21567, 23877, 29883, 43407, 48711, 50877, 51093, 55497, 64701, 89649, 94887, 118713, 133497, 142947, 146133, 149331
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OFFSET
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1,2
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COMMENTS
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3 divides a(n) for n > 1.
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LINKS
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Table of n, a(n) for n=1..38.
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CROSSREFS
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Cf. A127263 (k^3 divides 2^(k^2) + 1).
Cf. A128678, A128679, A128680, A128681, A128682, A128683, A128684, A128685.
Cf. A177813, A177814, A177816, A177817, A177818, A177819, A177820.
Cf. A128677 (least k > p such that (k*p)^3 divides (p-1)^(k*p)^2+1, where p = prime(n) > 2).
Sequence in context: A128127 A341433 A014857 * A292392 A112039 A007518
Adjacent sequences: A177814 A177815 A177816 * A177818 A177819 A177820
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KEYWORD
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nonn
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AUTHOR
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Alexander Adamchuk, May 14 2010
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STATUS
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approved
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