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A055958 a(n) = n + reversal of base 9 digits of n (written in base 10). 2
0, 2, 4, 6, 8, 10, 12, 14, 16, 10, 20, 30, 40, 50, 60, 70, 80, 90, 20, 30, 40, 50, 60, 70, 80, 90, 100, 30, 40, 50, 60, 70, 80, 90, 100, 110, 40, 50, 60, 70, 80, 90, 100, 110, 120, 50, 60, 70, 80, 90, 100, 110, 120, 130, 60, 70, 80, 90, 100, 110, 120, 130, 140, 70, 80, 90 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

If n has an even number of digits in base 9 then a(n) is a multiple of 10

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

FORMULA

a(n) = n + A030108(n).

MATHEMATICA

Table[n+FromDigits[Reverse[IntegerDigits[n, 9]], 9], {n, 0, 70}] (* Harvey P. Dale, Sep 03 2013 *)

PROG

(PARI) a(n) = n + fromdigits(Vecrev(digits(n, 9)), 9); \\ Michel Marcus, Sep 27 2018

CROSSREFS

Cf. A056964.

Sequence in context: A316837 A076428 A319747 * A241142 A271907 A069816

Adjacent sequences:  A055955 A055956 A055957 * A055959 A055960 A055961

KEYWORD

nonn,base,look

AUTHOR

Henry Bottomley, Jul 18 2000

STATUS

approved

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Last modified August 3 13:49 EDT 2020. Contains 336198 sequences. (Running on oeis4.)