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A317199
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Bo Tan et al.'s string E_n, defined by A_n = A103269(n) = D_{n-1}E_n = A317197(n-1)E_n for n >= 2, with E_1 = 12.
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2
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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A_4 = 1213121121312, D_3 = 1213121, so E_4 = 121312.
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CROSSREFS
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See A317201 for the reversals of these words.
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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