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n sets a new record for the index of the (presumably) last palindrome in the 'Reverse and Add' trajectory of n.
11

%I #7 Jun 11 2024 22:17:01

%S 1,3,5,122,160,190,739,10000,10058,10151,1003346,1304392,1702190

%N n sets a new record for the index of the (presumably) last palindrome in the 'Reverse and Add' trajectory of n.

%C A070744 gives the corresponding records.

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

%e 678736545637876 is the 36th term and (presumably) the last palindrome in the trajectory of 5; for k < 5 the last palindrome has an index < 36 in the trajectory of k (cf. A070742), so 5 is in the sequence.

%Y Cf. A065001, A065198, A070742, A070744.

%K base,more,nonn

%O 1,2

%A _Klaus Brockhaus_, May 03 2002

%E Offset corrected by _Sean A. Irvine_, Jun 11 2024