A118075 Start with 1 and repeatedly reverse the digits and add 42 to get the next term.

1, 43, 76, 109, 943, 391, 235, 574, 517, 757, 799, 1039, 9343, 3481, 1885, 5923, 3337, 7375, 5779, 9817, 7231, 1369, 9673, 3811, 1225, 5263, 3667, 7705, 5119, 9157, 7561, 1699, 10003, 30043, 34045, 54085, 58087, 78127, 72229, 92269, 96271, 17311, 11413

Offset: 1

Author

Luc Stevens (lms022(AT)yahoo.com), May 11 2006

Keywords

• base
• nonn

Comments

After 245 steps enters a cycle of length 57. Sequence gives first 50 terms. Cycle : 985, 631, 178, 913, 361, 205, 544, 487, 826, 670, 118, 853, 400, 46, 106, 643, 388, 925, 571, 217, 754, 499, 1036, 6343, 3478, 8785, 5920, 337, 775, 619, 958, 901, 151, 193, 433, 376, 715, 559, 997, 841, 190, 133, 373, 415, 556, 697, 868, 880, 130, 73, 79, 139, 973, 421, 166, 703, 349, 985 ...

Links

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

Crossrefs

Cf. A117828, A117816, A117817.

Programs

Mathematica

NestList[FromDigits[Reverse[IntegerDigits[#]]]+42&,1,50] (* Harvey P. Dale, Oct 05 2014 *)

Extensions

Corrected by Harvey P. Dale, Oct 05 2014