Voozh

A065031

In the decimal expansion of n, replace each odd digit with 1 and each even digit with 2.

2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 12, 11, 12, 11, 12, 11, 12, 11, 12, 11, 22, 21, 22, 21, 22, 21, 22, 21, 22, 21, 12, 11, 12, 11, 12, 11, 12, 11, 12, 11, 22, 21, 22, 21, 22, 21, 22, 21, 22, 21, 12, 11, 12, 11, 12, 11, 12, 11, 12, 11, 22, 21, 22, 21, 22, 21, 22, 21, 22, 21

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OFFSET

0,1

COMMENTS

A196563(a(n)) = A196563(n); A196564(a(n)) = A196564(n).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

EXAMPLE

a(123)=121 because 1 and 3 are odd and 2 is even.

MATHEMATICA

Table[FromDigits[If[OddQ[#], 1, 2]&/@IntegerDigits[n]], {n, 0, 120}] (* Harvey P. Dale, Jun 08 2014 *)

PROG