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A261921
Nonpalindromes which are the sum of two palindromes whose lengths differ by 1.
3
12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28, 29, 30, 31, 34, 35, 36, 37, 38, 39, 40, 41, 42, 45, 46, 47, 48, 49, 50, 51, 52, 53, 56, 57, 58, 59, 60, 61, 62, 63, 64, 67, 68, 69, 70, 71, 72, 73, 74, 75, 78, 79, 80, 81, 82, 83, 84, 85, 86, 89, 90, 91, 92, 93, 94, 95, 96, 97, 100, 101, 102, 103, 104, 105, 106, 107, 108, 112, 122, 123, 132
OFFSET
1,1
COMMENTS
More than the usual number of terms are displayed in order to show that this is different from A261907.
EXAMPLE
12=11+1 and 100=99+1 are members.
10 is not a member since it is only the sum of two palindromes (5+5) whose lengths are equal.
CROSSREFS
Cf. A002113. A subsequence of A261907. A261920 shows the differences.
Sequence in context: A004501 A071955 A267760 * A125290 A101594 A162792
KEYWORD
nonn,base
AUTHOR
STATUS
approved