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Search: id:A050139
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A050139 a(n)=[ a(n-1)/2 ] if this is not among 0,a(1),...,a(n-1), else a(n)=4*n. +0
1
2, 1, 12, 6, 3, 24, 28, 14, 7, 40, 20, 10, 5, 56, 60, 30, 15, 72, 36, 18, 9, 4, 92, 46, 23, 11, 108, 54, 27, 13, 124, 62, 31, 136, 68, 34, 17, 8, 156, 78, 39, 19, 172, 86, 43, 21, 188, 94, 47, 200, 100, 50, 25, 216, 220, 110, 55, 232, 116 (list; graph; listen)
OFFSET

1,1

COMMENT

Does this sequence contain every positive integer exactly once?

CROSSREFS

Sequence in context: A119274 A066991 A132875 this_sequence A010255 A085752 A074966

Adjacent sequences: A050136 A050137 A050138 this_sequence A050140 A050141 A050142

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 4 14:15 EST 2008. Contains 151279 sequences.


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