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A026342 a(n) = a(m) if a(m) has already occurred exactly once and n = m+[ (m+1)/2 ], else a(n) = least positive integer that has not yet occurred. 3
1, 1, 2, 3, 2, 3, 4, 5, 6, 7, 4, 5, 8, 6, 7, 9, 10, 11, 12, 8, 13, 14, 15, 9, 16, 10, 11, 17, 12, 18, 19, 13, 14, 20, 15, 21, 22, 16, 23, 24, 25, 17, 26, 27, 18, 28, 19, 29, 30, 31, 20, 32, 33, 21, 34, 22, 35, 36, 23, 24, 37, 25, 38, 39, 26, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..66.

CROSSREFS

Sequence in context: A327666 A286717 A162751 * A275727 A255395 A175266

Adjacent sequences: A026339 A026340 A026341 * A026343 A026344 A026345

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 4 04:29 EST 2023. Contains 360046 sequences. (Running on oeis4.)