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A084998 Palindromes formed from the concatenation of n, sum of n and R(n), and R(n) with its leading zeros; or 0 if no such palindrome exists. R(k) is the digit reversal of k. 2
121, 242, 363, 484, 0, 0, 0, 0, 0, 101101, 112211, 123321, 134431, 145541, 156651, 167761, 178871, 189981, 0, 202202, 213312, 224422, 235532, 246642, 257752, 268862, 279972, 0, 2912192, 303303, 314413, 325523, 336633, 347743, 358853, 369963, 0, 3812183, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

EXAMPLE

E.g. a(38)=3812183: 83+38=121 and 38_121_83 is a palindrome.

MATHEMATICA

f[n_]:=FromDigits[Join[IntegerDigits[n], IntegerDigits[n+ IntegerReverse[ n]], Reverse[ IntegerDigits[n]]]]; Table[If[PalindromeQ[f[n]], f[n], 0], {n, 50}] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 13 2018 *)

CROSSREFS

Sequence in context: A036309 A119378 A261618 * A082944 A131973 A045571

Adjacent sequences:  A084995 A084996 A084997 * A084999 A085000 A085001

KEYWORD

nonn,base

AUTHOR

Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 01 2003

EXTENSIONS

New description from Charles R Greathouse IV, Aug 02 2010

Corrected and extended by Harvey P. Dale, Aug 13 2018

STATUS

approved

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Last modified September 29 12:15 EDT 2020. Contains 337431 sequences. (Running on oeis4.)