OFFSET
0,1
MAPLE
Ankst0 := proc(n); if (n=0) then RETURN(0); fi; (10^n - 1)/9; end; Ankst := proc(n); n*Ankst0(n); end; [seq(mobius(Ankst(i)), i=0..38)];
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Jani Melik, Oct 01 2002
STATUS
approved