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A118075
Start with 1 and repeatedly reverse the digits and add 42 to get the next term.
0
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
1,2
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.
MATHEMATICA
NestList[FromDigits[Reverse[IntegerDigits[#]]]+42&, 1, 50] (* Harvey P. Dale, Oct 05 2014 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), May 11 2006
EXTENSIONS
Corrected by Harvey P. Dale, Oct 05 2014
STATUS
approved