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A013952 Start with 1, apply 1->12, 21->21, 22->21, 2->2 (for final 2); take limit; note positions of 2's. 0
2, 3, 6, 8, 9, 11, 14, 15, 18, 19, 22, 24, 25, 28, 30, 31, 33, 36, 38, 39, 41, 44, 45, 48, 49, 51, 54, 55, 58, 59, 62, 64, 65, 68, 69, 72, 73, 76, 78, 79, 82, 84, 85, 87, 90, 92, 93, 96, 98, 99, 102, 104, 105, 107, 110, 112, 113, 115, 118, 119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..60.

CROSSREFS

Cf. A013949.

Sequence in context: A013948 A187478 A269860 * A105042 A092114 A032711

Adjacent sequences:  A013949 A013950 A013951 * A013953 A013954 A013955

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Incorrect 88 removed by Sean A. Irvine, Sep 02 2018

STATUS

approved

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Last modified October 22 07:48 EDT 2019. Contains 328315 sequences. (Running on oeis4.)