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A031945
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Numbers in which 0,1,2,3 all occur in base 4.
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1
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75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 267, 270, 283, 286, 291, 295, 299, 300, 301, 302, 303, 306, 310, 312, 313, 314, 315, 318, 331, 334, 355, 364, 370, 376, 387, 391, 395, 396
(list; graph; refs; listen; history; internal format)
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