%I #5 Mar 30 2012 17:27:41

%S 11,9,8,9,12,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,

%T 11,11

%N (Presumed) number of palindromes in the Reverse and Add! trajectory of 10^n.

%C The absolute maximum 12 at n = 4 and a(n) = 11 for n > 5 support the conjecture (cf. A077594) that there is no positive integer whose trajectory contains more than twelve palindromes.

%C The last palindrome in the Reverse and Add! trajectory of 10^n is given in A090074.

%H <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a>

%Y Cf. A065001, A070742, A077594, A090069, A090070, A090071, A090072, A090074.

%K nonn,base

%O 0,1

%A _Klaus Brockhaus_, Nov 20 2003