

A114120


Palindromes which are not the arithmetic mean of two distinct positive palindromes.


1



1, 11, 10901, 109901, 1090901, 1099901, 10900901, 10999901, 100909001, 109000901, 109090901, 109909901, 109999901, 1090000901, 1090990901, 1099009901, 1099999901, 10090909001, 10900000901, 10900900901, 10909090901, 10909990901
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

In this sequence 0 is not allowed as an addend. If 0 were allowed then 0 would be a term and 1 and 11 would not.  YuanHao Huang, Aug 31 2020


LINKS



EXAMPLE

191 is not in the sequence since it is the arithmetic mean of two distinct positive palindromes, 9 and 373.


CROSSREFS



KEYWORD

base,nonn


AUTHOR



EXTENSIONS



STATUS

approved



