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A140531
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Concatenate subsequences 0, 1, 2, 4, ..., 2^k.
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3
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0, 0, 1, 0, 1, 2, 0, 1, 2, 4, 0, 1, 2, 4, 8, 0, 1, 2, 4, 8, 16, 0, 1, 2, 4, 8, 16, 32, 0, 1, 2, 4, 8, 16, 32, 64, 0, 1, 2, 4, 8, 16, 32, 64, 128, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024
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OFFSET
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0,6
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COMMENTS
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A sequence B is called a reluctant sequence of sequence A, if B is triangle array read by rows: row number k coincides with first k elements of the sequence A. Sequence A140531 is the reluctant sequence of A131577. - Boris Putievskiy, Dec 12 2012
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LINKS
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FORMULA
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a(n) = floor(2^((n-2-t(t+1)/2)), where t=floor((-1+sqrt(8*n-7))/2), n>=1. - Boris Putievskiy, Dec 13 2012
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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