A118636 Start with 1 and repeatedly reverse the digits and add 40 to get the next term.

1, 41, 54, 85, 98, 129, 961, 209, 942, 289, 1022, 2241, 1462, 2681, 1902, 2131, 1352, 2571, 1792, 3011, 1143, 3451, 1583, 3891, 2023, 3242, 2463, 3682, 2903, 3132, 2353, 3572, 2793, 4012, 2144, 4452, 2584, 4892, 3024, 4243, 3464, 4683, 3904, 4133, 3354

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.

Formula

Never reaches a cycle (see A117816).

Mathematica

NestList[FromDigits[Reverse[IntegerDigits[#]]]+40&, 1, 50]  (* Harvey P. Dale, Dec 26 2010 *)
NestList[IntegerReverse[#]+40&, 1, 50] (* Harvey P. Dale, Aug 05 2025 *)

Crossrefs

Cf. A117828, A117816, A117817.

Sequence in context: A115663 A367421 A282353 * A116345 A127333 A262722

Adjacent sequences: A118633 A118634 A118635 * A118637 A118638 A118639

Keyword

base,nonn

Author

Luc Stevens (lms022(AT)yahoo.com), May 09 2006

Status

approved