A122957 Numbers n such that if m > n, phi(m) >= phi(n).

1, 2, 3, 4, 6, 8, 10, 12, 14, 18, 20, 24, 30, 36, 42, 48, 60, 66, 70, 72, 78, 84, 90, 96, 102, 120, 126, 132, 150, 156, 168, 180, 210, 240, 252, 270, 300, 330, 336, 360, 390, 420, 450, 462, 480, 510, 540, 546, 570, 630, 660, 690, 714, 720, 780, 840, 870, 900, 924

Offset

1,2

Comments

Conjecture: except for 1,2,3,4, this is the nonzero values of A066362.

Links

Donovan Johnson, Table of n, a(n) for n = 1..500

Example

10 is in the sequence because phi(10) = 4 and no larger m has phi(m) < 4. phi(12) = 4; it is not smaller.

Crossrefs

Cf. A036913, A000010, zeros of A066362.

Sequence in context: A347625 A126794 A011862 * A078769 A064375 A037229

Adjacent sequences: A122954 A122955 A122956 * A122958 A122959 A122960

Keyword

nonn

Author

Franklin T. Adams-Watters, Oct 25 2006

Status

approved