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A119902 Start with 100016 and repeatedly reverse the digits and add 5 to get the next term. 1

%I #9 May 26 2014 23:48:49

%S 100016,610006,600021,120011,110026,620016,610031,130021,120036,

%T 630026,620041,140031,130046,640036,630051,150041,140056,650046,

%U 640061,160051,150066,660056,650071,170061,160076,670066,660081,180071,170086,680076

%N Start with 100016 and repeatedly reverse the digits and add 5 to get the next term.

%C Let T(S,Q) be the sequence obtained by starting with S and repeatedly reversing the digits and adding Q to get the next term. This is T(10016,5). 100016 is the first S for which T(S,5) reaches a cycle of length 756. The cycle is simply the first 756 terms, which then repeat. A full period is given in the table.

%H Klaus Brockhaus, <a href="/A119902/b119902.txt">Table of n, a(n) for n = 1,...,756</a>

%H N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki.

%t NestList[FromDigits[Reverse[IntegerDigits[#]]]+5&,100016,40] (* _Harvey P. Dale_, Feb 24 2011 *)

%Y Cf. A117800, A118879, A118878.

%K nonn,base

%O 1,1

%A _Klaus Brockhaus_, May 28 2006

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)