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A037466
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a(n)=Sum{d(i)*7^i: i=0,1,...,m}, where Sum{d(i)*5^i: i=0,1,...,m} is the base 5 representation of n.
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1
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0, 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25, 28, 29, 30, 31, 32, 49, 50, 51, 52, 53, 56, 57, 58, 59, 60, 63, 64, 65, 66, 67, 70, 71, 72, 73, 74, 77, 78, 79, 80, 81, 98, 99, 100, 101, 102, 105, 106, 107, 108, 109, 112, 113, 114, 115
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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Table[FromDigits[RealDigits[n, 5], 7], {n, 0, 100}]
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CROSSREFS
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KEYWORD
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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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