2011 Typos

• In Problem 3, replace the line

  Note that the sequence begins with i=1.

  with

  Note that the sequence begins with i=0.

• In Problem 6, replace the input case

  6
  ......
  ...*..
  ..*...
  ....*.
  ......
  .*....
  ......
  

  with

  6
  ......
  ...*..
  ..*...
  ....*.
  .*....
  ......