A070792 Integers n such that the 'Reverse and Add!' trajectory of n joins the trajectory of 7.

7, 14, 19, 23, 28, 29, 32, 37, 38, 41, 46, 47, 49, 50, 55, 56, 58, 64, 65, 67, 73, 74, 76, 82, 83, 85, 89, 91, 92, 94, 98, 110, 121, 136, 143, 187, 220, 235, 242, 286, 334, 341, 385, 433, 440, 484, 532, 569, 583, 631, 668, 682, 719, 730, 767, 781, 818, 866, 869

Offset: 1

Author

Klaus Brockhaus, May 07 2002

Keywords

• base
• nonn

Examples

			The trajectory of 14 is part of the trajectory of 7; the trajectory of 235 joins the trajectory of 7 at 8872688 after 13 steps.
		

Links

• Index entries for sequences related to Reverse and Add!

Crossrefs

Cf. A070788 - A070791, A070793 - A070798, A063049.

Programs

Mathematica

limit = 10^3; x = NestList[ # + IntegerReverse[#] &, 7, limit];
Select[Range[869],
 Intersection[NestList[ # + IntegerReverse[#] &, #, limit],
x] != {} &] (* Robert Price, Oct 20 2019 *)