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Trajectory of n under the Reverse and Add! operation carried out in base 5 (presumably) does not reach a palindrome.
1

%I #16 Feb 19 2019 15:43:06

%S 708,718,723,731,733,743,828,838,843,851,853,863,958,963,983,1078,

%T 1083,1103,1203,1299,1309,1332,1342,1347,1350,1355,1357,1359,1367,

%U 1419,1429,1452,1462,1467,1475,1477,1479,1487,1499,1539,1582,1607,1619,1659,1702,1707,1727,1739,1779,1827,1859,1923,1933,1956

%N Trajectory of n under the Reverse and Add! operation carried out in base 5 (presumably) does not reach a palindrome.

%C Base-5 analog of A066059 (base 2), A077404 (base 3), A075420 (base 4) and A023108 (base 10).

%C All terms are tested up to 200 iteration steps, i.e., within 200 steps no palindrome was reached.

%H A.H.M. Smeets, <a href="/A306365/b306365.txt">Table of n, a(n) for n = 1..20000</a>

%Y Cf. A066059, A075420, A077404, A023108.

%K nonn,base

%O 1,1

%A _A.H.M. Smeets_, Feb 10 2019