A105054 a(n) is the n-th positive integer among those which do not occur earlier in the sequence and which are coprime to n.

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

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: A063187 A335164 A205323 * A088897 A255233 A361708

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