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 A065322 #5 Mar 30 2012 17:27:33 %S A065322 10911,11901,20910,21900,1009520,1009601,1019420,1019501,1029320, %T A065322 1029401,1039220,1049120,1049201,1059020,1059101,1069001,1108391, %U A065322 1109510,1118291,1119410,1128191,1129310,1138091,1139210,1149110 %N A065322 55 'Reverse and Add' steps are needed to reach a palindrome. %C A065322 The number of steps starts at 0, so palindromes (cf. A002113) are excluded. 55 is a record (cf. A065199) of the number of 'Reverse and Add' steps needed to reach a palindrome. %H A065322 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %Y A065322 A002113, A065198, A065199, A065318. %K A065322 base,nonn %O A065322 0,1 %A A065322 _Klaus Brockhaus_, Oct 30 2001