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1, 4, 2, 35, 33, 3, 5, 16, 14, 12, 10, 8, 6, 188, 58, 186, 184, 23, 25, 7, 9, 11, 13, 15, 17, 182, 48, 46, 50, 1774, 1770, 1772, 1786, 1784, 1766, 40, 1764, 32, 34, 36, 22, 20, 18, 24, 26, 204, 202, 200, 198, 196, 194, 192, 190, 1758, 1762, 1760, 79, 77, 1782, 602
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Is it ever 0?
If all a(n)>0, then this is the inverse permutation of A064389. - M. F. Hasler, Nov 03 2014
After 10^12 terms of A064389, the first unknown term of this sequence is 5191516. - Benjamin Chaffin, Oct 09 2016
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LINKS
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Benjamin Chaffin, Table of n, a(n) for n = 1..20000 [First 6655 terms from Nick Hobson]
Nick Hobson, Python program for this sequence
Index entries for sequences related to Recamán's sequence
Index entries for sequences that are permutations of the natural numbers
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PROG
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(PARI) for(i=1, 9e9, for(j=1, #a064389, a064389[j]==i&&print1(j", ")+next(2)); break) \\ The terms of A064389 must be stored in the vector a064389. - M. F. Hasler, Nov 03 2014
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CROSSREFS
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Cf. A064389, A005132, A057167.
Sequence in context: A348567 A303085 A086482 * A102015 A302890 A307974
Adjacent sequences: A078755 A078756 A078757 * A078759 A078760 A078761
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KEYWORD
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nonn
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AUTHOR
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Reiner Martin, Jan 08 2003
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STATUS
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approved
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