def nwise($n):
  def n: if length <= $n then . else .[0:$n] , (.[$n:] | n) end;
  n;

def task:
  def pp: if . >=0 then " \(.)" else tostring end;
  "The first 199 Möbius numbers are:",
  (["  ", (range(1; 200) | mu | pp )]
   | nwise(20)
   | join(" ") ) ;

task