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A015904
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Numbers k such that k | 12^k + 12.
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11
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1, 2, 3, 4, 6, 12, 15, 26, 28, 52, 76, 78, 87, 156, 364, 435, 532, 988, 2356, 3052, 5356, 6916, 7588, 10095, 11476, 13636, 15051, 15964, 16458, 24388, 31996, 36114, 40132, 42484, 46396, 50428, 50726, 72436, 114846, 132652, 148276, 171076, 208468
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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Select[Range[10^5], Mod[PowerMod[12, #, #] + 12, #] == 0 &] (* Giovanni Resta, Oct 23 2018 *)
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CROSSREFS
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Cf. A006517, A015888, A015889, A015891, A015892, A015893, A015897, A015898, A015902, A015903, A015905, A015906.
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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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