OFFSET
1,1
COMMENTS
Could one say this is kind of fractal?
EXAMPLE
To avoid numbers beginning with 0, we assume the first term is 1xy, and so x=1, so 11y, but y=0 works, so the first term is 110.
The next two terms must be a1b, c0d, and se we take a=b=1, c=2, d=0, so now the sequence begins 110, 111, 200. And so on.
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Apr 29 2005
STATUS
approved