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A099507
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a(n) is such that A099506(a(n))=n.
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4
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1, 4, 2, 6, 17, 3, 10, 5, 12, 7, 14, 53, 9, 8, 11, 22, 13, 24, 15, 26, 99, 103, 28, 107, 30, 19, 32, 111, 16, 23, 18, 25, 42, 20, 29, 46, 31, 48, 33, 50, 209, 35, 211, 56, 37, 58, 217, 39, 60, 21, 41, 64, 43, 66, 245, 45, 72, 47, 74, 49, 27, 51, 34, 267, 80, 36, 82, 277, 38, 57
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| Gives the positions in the sequence A099506 at which the integers n>0 appear. That sequence begins: 1,3,6,2,8,4,... so a(1)=1, a(2)=4, a(3)=2, etc.
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CROSSREFS
| Cf. A099506.
Sequence in context: A058613 A053227 A083760 * A019104 A019119 A019181
Adjacent sequences: A099504 A099505 A099506 * A099508 A099509 A099510
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KEYWORD
| easy,nonn
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AUTHOR
| Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 20 2004
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