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A066626
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Concatenation of cubes in increasing order up to the n-th and then in decreasing order.
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0
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1, 181, 182781, 1827642781, 182764125642781, 182764125216125642781, 182764125216343216125642781, 182764125216343512343216125642781, 182764125216343512729512343216125642781
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history;
text;
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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