OFFSET
0,3
COMMENTS
It is obvious why the "+ 1" has to be there.
In the range where 100 < a(n) < 200, the gaps may only be 1 or 2, similarly for other multiples of 100, 1000, etc
PROG
(PARI) print1(0", "a=1); for(i=1, 99, print1(", ", a+=vecmin(digits(a))+1))
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
M. F. Hasler, Jan 14 2014
EXTENSIONS
PARI code corrected by Colin Barker, Sep 20 2014
STATUS
approved