A055958 a(n) = n + reversal of base 9 digits of n (written in base 10).

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

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