A070797 Integers n such that the 'Reverse and Add!' trajectory of n joins the trajectory of 108.

108, 126, 144, 153, 162, 171, 180, 189, 207, 225, 243, 252, 261, 270, 279, 288, 306, 324, 342, 351, 360, 378, 387, 405, 423, 441, 450, 477, 486, 504, 522, 540, 549, 576, 585, 603, 621, 648, 675, 684, 702, 720, 747, 774, 783, 801, 846, 873, 882, 900, 909

Offset

1,1

Comments

It appears that the first differences of this sequence are always a multiple of 9. - Robert Price, Oct 20 2019

Links

Table of n, a(n) for n=1..51.

Index entries for sequences related to Reverse and Add!

Example

The trajectory of 909 is part of the trajectory of 108; the trajectory of 126 joins the trajectory of 108 at 4069593 after 12 steps.

Mathematica

limit = 10^3; x = NestList[ # + IntegerReverse[#] &, 108, limit];
Select[Range[909],
Intersection[NestList[ # + IntegerReverse[#] &, #, limit],
x] != {} &] (* Robert Price, Oct 20 2019 *)

Crossrefs

Cf. A070788 - A070796, A070798, A063049.

Sequence in context: A304565 A327338 A217541 * A173748 A274118 A046294

Adjacent sequences: A070794 A070795 A070796 * A070798 A070799 A070800

Keyword

base,nonn

Author

Klaus Brockhaus, May 07 2002

Status

approved