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A309325 Numbers that are the sum of two successive palindromes. 0
1, 3, 5, 7, 9, 11, 13, 15, 17, 20, 33, 55, 77, 99, 121, 143, 165, 187, 200, 212, 232, 252, 272, 292, 312, 332, 352, 372, 393, 414, 434, 454, 474, 494, 514, 534, 554, 574, 595, 616, 636, 656, 676, 696, 716, 736, 756, 776, 797, 818, 838, 858, 878, 898, 918, 938, 958, 978 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..58.

Index entries for sequences related to palindromes

FORMULA

a(n) = A002113(n) + A002113(n+1).

MATHEMATICA

Total /@ Partition[Select[Range[0, 500], PalindromeQ], 2, 1]

CROSSREFS

Cf. A002113, A046489, A046497, A260255, A261906.

Sequence in context: A137507 A061808 A248608 * A192863 A143450 A225563

Adjacent sequences:  A309322 A309323 A309324 * A309326 A309327 A309328

KEYWORD

nonn,base

AUTHOR

Ilya Gutkovskiy, Jul 23 2019

STATUS

approved

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Last modified May 8 20:32 EDT 2021. Contains 343668 sequences. (Running on oeis4.)