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A033074
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Numbers n with property that all pairs of consecutive base 9 digits differ by 1.
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0
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1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69, 71, 79, 82, 100, 102, 171, 173, 191, 193, 262, 264, 282, 284, 353, 355, 373, 375, 444, 446, 464, 466, 535, 537, 555, 557, 626, 628, 646, 717, 719, 738, 740, 900
(list; graph; refs; listen; history; internal format)
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