0,1

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)];

Cf. A053422.

Sequence in context: A121373 A133985 A143062 this_sequence A115356 A115359 A117906

Adjacent sequences: A074907 A074908 A074909 this_sequence A074911 A074912 A074913

easy,sign

Jani Melik (jani_melik(AT)hotmail.com), Oct 01 2002