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A074291 Positions in the Kolakoski sequence (A000002) where Kolakoski[n] is 1 if n is odd, or 2 if n is even. +0
1
1, 2, 5, 6, 7, 8, 12, 13, 17, 18, 23, 24, 25, 26, 29, 30, 31, 36, 37, 38, 41, 42, 43, 44, 49, 50, 51, 54, 55, 56, 59, 60, 61, 62, 66, 67, 71, 72, 73, 74, 79, 80, 84, 85, 90, 91, 92, 95, 96, 97, 100, 101, 102 (list; graph; listen)
OFFSET

0,2

EXAMPLE

Kolakoski : 1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,1,2,2,1,2 Subtracting 1,2,1,2,1,2 gives 0,0,1,-1,0,0, hence the sequence begins 1,2,5,6

CROSSREFS

Sequence in context: A028752 A028791 A080727 this_sequence A134026 A043047 A014355

Adjacent sequences: A074288 A074289 A074290 this_sequence A074292 A074293 A074294

KEYWORD

nonn

AUTHOR

Jon Perry (perry(AT)globalnet.co.uk), Sep 21 2002

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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