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A062696
Palindromes that are the sum of two shorter palindromes.
0
11, 101, 121, 1001, 1111, 1221, 10001, 10101, 10201, 11011, 12221, 100001, 101101, 110011, 111111, 121121, 122221, 1000001, 1001001, 1002001, 1003001, 1004001, 1005001, 1006001, 1007001, 1008001, 1009001, 1010101, 1011101, 1012101
OFFSET
1,1
COMMENTS
Because of the length constraints, all terms necessarily start (and hence end) with the digit 1. - Sean A. Irvine, Apr 04 2023
EXAMPLE
121 = 22 + 99, all are palindromes and the first is longer than the other two.
CROSSREFS
Cf. A002113.
Sequence in context: A176196 A303570 A208262 * A113654 A066592 A316604
KEYWORD
base,nonn
AUTHOR
Erich Friedman, Jul 04 2001
EXTENSIONS
a(18)-a(30) from Donovan Johnson, Sep 19 2009
STATUS
approved