Given user input, generate a pattern matching game of the appropriate pattern and difficulty

Choose Level of toughness: 1. very Easy (add 3 each time) 2. Medium (multiply 7 each time) 3. very Hard (Cube each number and then subtract 1. The next input number for the calculation is the previous calculation input + 1.) [1] Enter a number to start the pattern: [1] Enter the next 3 numbers in the pattern: 1 4 7 10 [13] [16] [19] Congrats! Your answer was correct! Play Game Again? (y/n) [n] Ending Pattern Matcher...

(if y), then start from the beginning