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A105054 a(n) is n-th positive integer among those which do not occure earlier in sequence and which are coprime to n. 1
1, 5, 7, 13, 8, 29, 11, 25, 22, 37, 17, 61, 20, 51, 44, 49, 27, 85, 32, 77, 59, 75, 38, 113, 47, 93, 68, 101, 45, 163, 52, 105, 83, 115, 76, 167, 58, 131, 103, 149, 66, 221, 70, 153, 133, 155, 74, 223, 90, 187, 127, 183, 87, 251, 109, 207, 142, 193, 95, 329, 98, 205, 173 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..63.

EXAMPLE

a(4) is the 4th positive integer coprime to 4 and not among the first 3 terms of the sequence (i.e. the 4th term among 3, 9, 11, 13, 15,...).

CROSSREFS

Cf. A069213.

Sequence in context: A195557 A063187 A205323 * A088897 A255233 A074755

Adjacent sequences:  A105051 A105052 A105053 * A105055 A105056 A105057

KEYWORD

nonn

AUTHOR

Leroy Quet, Apr 04 2005

EXTENSIONS

More terms from John W. Layman, Apr 08 2005

STATUS

approved

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Last modified March 30 12:10 EDT 2020. Contains 333125 sequences. (Running on oeis4.)