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Search: id:A132226
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| A132226 |
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Placement sequence for the dense normalized fractal sequence A132224. |
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+0
2
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| 1, 2, 3, 2, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 51, 49
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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C. Kimberling, Proper self-containing sequences, fractal sequences, and para-sequences, preprint, 2007.
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FORMULA
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For n>1, in the n-th segment of A132224 the only number not also in the (n-1)st segment is n. a(n) is the position of n in the n-th segment of A132224. The terms after the first two are formed by segments of consecutive integers: 3,2, then 5,4,3,2, then 9,8,7,6,5,4,3,2, etc.
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EXAMPLE
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The first 7 successive segments of A132224 are 1, 12, 123, 1423, 14235, 142635, 1472635, from which we read the positions of 1,2,3,4,5,6,7 as 1,2,3,2,5,4,3.
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CROSSREFS
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Cf. A132223, A132224.
Sequence in context: A141465 A141663 A011153 this_sequence A075861 A141658 A089587
Adjacent sequences: A132223 A132224 A132225 this_sequence A132227 A132228 A132229
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu), Aug 14 2007
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