A126357 a(n) is the (n+1)st integer from among the positive integers which are coprime to n.

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

Offset: 1

Author

Leroy Quet, Dec 26 2006

Keywords

• nonn

Examples

			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).
		

Crossrefs

Cf. A069213, A126356.

Programs

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 *)

Extensions

Extended by Ray Chandler, Dec 29 2006