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A240535
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a(n)=m if n belongs to the S_m sequence described in A240521.
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8
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1, 1, 1, 1, 3, 1, 5, 1, 9, 1, 3, 1, 17, 5, 1, 1, 33, 1, 3, 9, 65, 1, 7, 1, 129, 17, 5, 1, 13, 1, 257, 33, 513, 3, 9, 1, 1025, 65, 11, 1, 25, 1, 17, 5, 2049, 1, 129, 1, 4097, 257, 33, 1, 49, 9, 21, 513, 8193, 1, 7, 1, 16385, 3, 65, 17, 97, 1, 129, 1025, 19, 1
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OFFSET
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2,5
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COMMENTS
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LINKS
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EXAMPLE
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Let n = 30. We have a unique representation of 30 as a product of distinct terms of A050376: 30 = 2*3*5. We write all the terms of A050376 in the interval [2,5]: 2,3,4,5. Under the terms used in the representation of 30 we write 1, under other terms we write 0. After concatenation we obtain the binary number corresponding to 30: 1101. In decimal it is 13. So a(30) = 13.
Let n = 60 = 3*4*5. In the interval [3,5] the terms of A050376 are 3,4,5, all of which are used in the representation of 60. So we write 1 under all 3 terms and obtain the binary number 111. In decimal it is 7. So a(60)=7.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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Name revised and other edits by Peter Munn, Oct 11 2021
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STATUS
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approved
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