A070798 Integers n such that the 'Reverse and Add!' trajectory of n joins the trajectory of 111.

111, 123, 147, 210, 222, 246, 321, 345, 420, 444, 543, 642, 741, 789, 840, 888, 987, 1002, 1005, 1596, 1686, 1776, 1866, 1956, 2001, 2004, 2595, 2685, 2775, 2865, 2955, 3000, 3003, 3009, 3099, 3189, 3279, 3369, 3459, 3549, 3594, 3639, 3684, 3729, 3774

Offset

1,1

Comments

It appears that the first differences of this sequence are always a multiple of 3. - Robert Price, Oct 20 2019

Links

Table of n, a(n) for n=1..45.

Index entries for sequences related to Reverse and Add!

Example

The trajectory of 222 is part of the trajectory of 111; the trajectory of 2004 joins the trajectory of 111 at 66066 after 7 steps.

Mathematica

limit = 10^2; x = NestList[ # + IntegerReverse[#] &, 111, limit];
Select[Range[3774],
 Intersection[NestList[ # + IntegerReverse[#] &, #, limit],
x] != {} &] (* Robert Price, Oct 20 2019 *)

Crossrefs

Cf. A070788 - A070797, A063049.

Sequence in context: A280636 A034840 A135643 * A235039 A279423 A213879

Adjacent sequences: A070795 A070796 A070797 * A070799 A070800 A070801

Keyword

base,nonn

Author

Klaus Brockhaus, May 07 2002

Status

approved