text: for the rest of the array we will rely on the previous entries to compute new ones
code: for n in range ( 1 , 21 ) : NEW_LINE INDENT print ( ' Maximum ▁ Number ▁ of ▁ As ▁ with ▁ ' , n , ' keystrokes ▁ is ▁ ' , findoptimal ( n ) ) NEW_LINE DEDENT