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Search: id:A131966
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| A131966 |
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Interspersion associated with the Cantor fractal sequence, A088370. |
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+0
2
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| 1, 2, 3, 4, 6, 5, 7, 9, 8, 10, 11, 14, 13, 15, 12, 16, 19, 28, 21, 17, 20, 22, 26, 24, 28, 23, 27, 25, 29, 33, 31, 35, 30, 34, 32, 36
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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A permutation of the natural numbers.
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REFERENCES
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C. Kimberling, "Fractal sequences and interspersions," Ars Combinatoria 45 (1997) 157-168.
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FORMULA
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T is a rectangular array given by antidiagonals: T(i,j) = the j-th index n for which A088370(n) = i.
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EXAMPLE
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Northwest corner:
1 2 4 7 11
3 6 9 14 19
5 8 13 18 24
10 15 21 28 35
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CROSSREFS
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Cf. A088370.
Sequence in context: A139708 A059893 A132284 this_sequence A064578 A057027 A090894
Adjacent sequences: A131963 A131964 A131965 this_sequence A131967 A131968 A131969
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KEYWORD
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nonn,tabl
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu), Aug 02 2007
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