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A032699
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Exactly 3 digits from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a lucky number.
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0
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1, 5, 7, 11, 15, 21, 23, 33, 37, 39, 51, 59, 61, 67, 73, 77, 79, 89, 91, 95, 97, 107, 111, 115, 121, 127, 139, 151, 163, 175, 179, 183, 191, 195, 223, 229, 231, 235, 237, 251, 257, 263, 277, 283, 285, 299, 301, 325, 331, 335, 355, 363, 365, 377, 395, 399, 403
(list; graph; refs; listen; history; internal format)
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