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A337865 Lexicographically earliest sequence of distinct positive integers such that the sum of a(n) and [a(n+1) reversed] is a palindrome in base 10. 2
1, 2, 3, 4, 5, 6, 17, 28, 37, 7, 18, 38, 16, 27, 47, 8, 19, 29, 51, 62, 73, 82, 71, 102, 9, 31, 42, 53, 64, 74, 41, 52, 63, 83, 61, 72, 92, 91, 111, 101, 121, 131, 141, 151, 15, 26, 57, 13, 24, 35, 46, 55, 11, 22, 33, 44, 75, 65, 21, 32, 43, 54, 76, 56, 12, 23, 34, 45, 66 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Terms ending in zero are not in the sequence; when reversed they produce a term with a leading zero.

LINKS

Carole Dubois, Table of n, a(n) for n = 1..5001

EXAMPLE

a(7) = 17 and a(8) = 28; the addition 17 + 82 is a palindrome (99).

a(8) = 28 and a(9) = 37; the addition 28 + 73 is a palindrome (101). Etc.

CROSSREFS

Cf. A228730 (the sum of two consecutive terms is a palindrome in base 10).

Sequence in context: A124365 A115896 A116018 * A297181 A294121 A048095

Adjacent sequences:  A337862 A337863 A337864 * A337866 A337867 A337868

KEYWORD

nonn,base,look

AUTHOR

Eric Angelini and Carole Dubois, Sep 27 2020

STATUS

approved

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Last modified January 22 01:28 EST 2022. Contains 350481 sequences. (Running on oeis4.)