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%I #17 Apr 04 2023 21:52:34
%S 11,101,121,1001,1111,1221,10001,10101,10201,11011,12221,100001,
%T 101101,110011,111111,121121,122221,1000001,1001001,1002001,1003001,
%U 1004001,1005001,1006001,1007001,1008001,1009001,1010101,1011101,1012101
%N Palindromes that are the sum of two shorter palindromes.
%C Because of the length constraints, all terms necessarily start (and hence end) with the digit 1. - _Sean A. Irvine_, Apr 04 2023
%e 121 = 22 + 99, all are palindromes and the first is longer than the other two.
%Y Cf. A002113.
%K base,nonn
%O 1,1
%A _Erich Friedman_, Jul 04 2001
%E a(18)-a(30) from _Donovan Johnson_, Sep 19 2009
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