This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A070743 #7 Jun 11 2024 22:17:01 %S A070743 1,3,5,122,160,190,739,10000,10058,10151,1003346,1304392,1702190 %N A070743 n sets a new record for the index of the (presumably) last palindrome in the 'Reverse and Add' trajectory of n. %C A070743 A070744 gives the corresponding records. %H A070743 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %e A070743 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 A070743 Cf. A065001, A065198, A070742, A070744. %K A070743 base,more,nonn %O A070743 1,2 %A A070743 _Klaus Brockhaus_, May 03 2002 %E A070743 Offset corrected by _Sean A. Irvine_, Jun 11 2024