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A126357 a(n) is the (n+1)st integer from among the positive integers which are coprime to n. 2
2, 5, 5, 9, 7, 19, 9, 17, 14, 27, 13, 37, 15, 33, 29, 33, 19, 55, 21, 51, 38, 49, 25, 73, 32, 57, 41, 67, 31, 113, 33, 65, 56, 73, 52, 109, 39, 81, 64, 101, 43, 149, 45, 97, 86, 97, 49, 145, 58, 127, 82, 113, 55, 163, 76, 131, 91, 121, 61, 227, 63, 129, 110, 129, 88, 221, 69 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..67.

EXAMPLE

The positive integers which are coprime to 6 are 1,5,7,11,13,17,19,23,... The 7th of these is 19, which is a(6).

MATHEMATICA

f[n_] := Block[{k = 0, c = n + 1}, While[c > 0, k++; While[GCD[k, n] > 1, k++ ]; c--; ]; k]; Table[f[n], {n, 67}] (* Ray Chandler, Dec 29 2006 *)

CROSSREFS

Cf. A069213, A126356.

Sequence in context: A152781 A200242 A062553 * A070243 A050175 A243333

Adjacent sequences:  A126354 A126355 A126356 * A126358 A126359 A126360

KEYWORD

nonn

AUTHOR

Leroy Quet, Dec 26 2006

EXTENSIONS

Extended by Ray Chandler, Dec 29 2006

STATUS

approved

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Last modified March 30 22:55 EDT 2020. Contains 333132 sequences. (Running on oeis4.)