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A171736
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10^n*(2+7*10^n)+7.
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0
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16, 727, 70207, 7002007, 700020007, 70000200007, 7000002000007, 700000020000007, 70000000200000007, 7000000002000000007, 700000000020000000007, 70000000000200000000007
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OFFSET
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0,1
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LINKS
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MATHEMATICA
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Join[{16}, FromDigits/@Table[Join[{7}, PadRight[{}, n, 0], {2}, PadRight[{}, n, 0], {7}], {n, 0, 10}]] (* Harvey P. Dale, Aug 14 2019 *)
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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