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A060142
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Ordered set S defined by these rules: 0 and 1 are in S and if x is a nonzero number in S, then 2x+1 and 4x are in S.
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2
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0, 1, 3, 4, 7, 9, 12, 15, 16, 19, 25, 28, 31, 33, 36, 39, 48, 51, 57, 60, 63, 64, 67, 73, 76, 79, 97, 100, 103, 112, 115, 121, 124, 127, 129, 132, 135, 144, 147, 153, 156, 159, 192, 195, 201, 204, 207, 225, 228, 231, 240, 243, 249, 252, 255, 256, 259, 265, 268, 271
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| After expelling 0 and 1, the numbers 4x occupy same positions in S that 1 occupies in the infinite Fibonacci word (A003849).
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REFERENCES
| Preprint available from Clark Kimberling
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CROSSREFS
| Sequence in context: A198772 A185256 A070992 * A049844 A140402 A005539
Adjacent sequences: A060139 A060140 A060141 * A060143 A060144 A060145
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KEYWORD
| nonn
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu), Mar 05 2001
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EXTENSIONS
| Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 01 2006
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