%I #9 Sep 25 2019 03:19:25
%S 2,3,4,5,6,7,8,9,22,33,44,55,66,77,88,99,101,111,121,131,141,151,161,
%T 171,181,191,202,212,222,232,242,252,262,272,282,292,303,313,323,333,
%U 343,353,363,373,383,393,404,414,424,434,444,454,464,474,484,494,505
%N Palindromes which are the arithmetic mean of two distinct palindromes.
%C The palindromes not in the sequence are 11, 10901, 109901,... (A114120).  _Giovanni Resta_, Feb 06 2006
%e 99 = (121+77)/2 is a member but 11 is not a member.
%e 191 is in the sequence since it is the arithmetic mean of two distinct palindromes, 9 and 373.
%Y Cf. A083157, A114120.
%K base,easy,nonn
%O 1,1
%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
%E More terms from _Giovanni Resta_, Feb 06 2006
