ChampernowneNumber

ChampernowneNumber[b] gives the base-b Champernowne number.

ChampernowneNumber[] gives the base-10 Champernowne number.

Examples

The base-10 Champernowne constant:

N[ChampernowneNumber[], 50]
(* 0.12345678910111213141516171819202122232425... *)

Base-2 Champernowne number:

N[ChampernowneNumber[2], 20]
(* 0.86224615... *)

Please visit the official Wolfram Language Reference for more details.