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A233517 Record values in A061026, the smallest number m such that n divides phi(m), where phi is Euler's totient function. 2
1, 3, 7, 11, 29, 53, 103, 191, 311, 709, 1021, 1091, 1597, 2339, 3547, 5449, 8243, 9337, 13711, 16673, 17579, 18899, 25367, 37217, 62207, 74441, 87869, 94439, 94789, 96353, 114013, 171167, 229981, 397253, 424769, 432781, 496747, 542599, 583397, 673451, 741677 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A233516 for the n that produce these values. After the initial 1, these numbers are prime.

LINKS

Table of n, a(n) for n=1..41.

MATHEMATICA

t2 = {{1, 1}}; Do[k = 1; While[Mod[EulerPhi[k], n] > 0, k++]; If[k > t2[[-1, 2]], AppendTo[t2, {n, k}]; Print[{n, k}]], {n, 2, 10^3}]; Transpose[t2][[2]]

CROSSREFS

Cf. A061026, A233516.

Sequence in context: A264803 A117790 A014447 * A125879 A238673 A318263

Adjacent sequences:  A233514 A233515 A233516 * A233518 A233519 A233520

KEYWORD

nonn

AUTHOR

T. D. Noe, Feb 12 2014

STATUS

approved

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Last modified May 26 17:16 EDT 2020. Contains 334630 sequences. (Running on oeis4.)