text: for the rest of the array we will rely on the previous entries to compute new ones
code: for ( N = 1 ; N <= 20 ; N ++ ) Console . WriteLine ( " Maximum ▁ Number ▁ of ▁ A ' s ▁ with ▁ " + N + " ▁ keystrokes ▁ is ▁ " + findoptimal ( N ) ) ; } }