OFFSET
0,2
MAPLE
a:=n->sum (10^(n-j+2), j=0..n): seq(a(n), n=0..28); #
MATHEMATICA
Table[FromDigits[PadLeft[{0, 0}, n, 1]], {n, 2, 20}] (* Harvey P. Dale, Jul 24 2012 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zerinvary Lajos, Dec 02 2006
STATUS
approved