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A108224
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Suppose you take the ten digits 0..9, arrange them in any order and then either concatenate adjacent ones or separate them with a plus or minus sign, e.g., 98-76+5-4-32+10 or 9-8-765+3041-2. The first expression totals to "1", the second example totals to "2275". This sequence lists the positive integers that cannot be expressed in this way.
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0
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99464, 99496, 99505, 99644, 99673, 99690, 99734, 99745, 99902, 99946, 99960, 99992, 100000, 100001, 100003, 100036, 100045, 100047, 100082, 100090, 100091, 100093, 100099, 100100, 100101, 100102, 100104, 100110, 100130, 100137, 100237
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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