A140489 Numbers that cannot be part of the trajectory of any number under repeated application of the map: n -> n + second-smallest number that does not divide n, unless they are the first term of the trajectory.

1, 2, 3, 5, 12, 15, 17, 24, 27, 29, 35, 36, 39, 41, 45, 48, 51, 53, 60, 63, 65, 72, 75, 77, 84, 87, 89, 95, 96, 99, 101, 105, 108, 111, 113, 120, 123, 125, 132, 135, 137, 144, 147, 149, 155, 156, 159, 161, 165, 168, 171, 173, 180, 183, 185, 192, 195

Offset

1,2

Links

Table of n, a(n) for n=1..57.

Crossrefs

Cf. A140485-A140488.

Sequence in context: A271227 A293696 A002139 * A331101 A193776 A051915

Adjacent sequences: A140486 A140487 A140488 * A140490 A140491 A140492

Keyword

nonn

Author

Jacques Tramu, Jun 25 2008

Status

approved