A263016 Numbers n such that A263014(n) > 0.

20, 24, 40, 48, 60, 80, 96, 120, 140, 156, 160, 180, 192, 240, 260, 272, 280, 312, 320, 336, 340, 360, 384, 408, 420, 460, 468, 480, 520, 540, 544, 560, 580, 600, 624, 640, 672, 680, 696, 720, 740, 768, 780

Offset

1,1

Links

Hans Havermann, Table of n, a(n) for n = 1..530

Mathematica

sumin[n_, k_] := Mod[Sum[If[GCD[i, n] == 1, PowerMod[i, k, n], 0], {i, 1, n}], n]; Select[Range[100], sumin[#, #] > 0 &]

Crossrefs

Cf. A263014, A263015, A290287.

Sequence in context: A214177 A044996 A347190 * A107302 A219392 A193572

Adjacent sequences: A263013 A263014 A263015 * A263017 A263018 A263019

Keyword

nonn

Author

José María Grau Ribas, Oct 07 2015

Status

approved