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A074276
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Positions of occurrences of 2,1,1,2,1 in the Kolakoski sequence A000002.
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3
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3, 12, 21, 27, 30, 39, 47, 57, 66, 69, 84, 93, 102, 111, 114, 120, 129, 139, 156, 166, 174, 183, 189, 192, 207, 216, 219, 225, 237, 243, 252, 264, 270, 273, 282, 290, 309, 318, 327, 336, 351, 354, 363, 380, 386, 398, 407, 416, 425, 437, 443, 462, 471, 480
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Nathaniel Johnston, Table of n, a(n) for n = 1..10000
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EXAMPLE
| The Kolakoski sequence begins 1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,..., so 2,1,1,2,1 occurs at positions 3 and 12.
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CROSSREFS
| Cf. A074275, A074277.
Sequence in context: A193558 A080767 A043465 * A055041 A061819 A017197
Adjacent sequences: A074273 A074274 A074275 * A074277 A074278 A074279
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KEYWORD
| nonn,easy
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AUTHOR
| Jon Perry (perry(AT)globalnet.co.uk), Sep 21 2002
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EXTENSIONS
| Extended and offset corrected by Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), May 02 2011
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