Total # of ways

% of total ways

0

1

4

0.25

1

1

12

0.083333

2

2

44

0.045455

3

5

168

0.029762

4

14

652

0.021472

5

42

2552

0.016458

7

429

39632

0.010825

10

16796

2466664

0.006809

15

9694845

2457718688

0.003945

20

6564120420

2474716313192

0.002652

25

4861946401452

2504621026560750

0.001941

30

3814986502092300

2542372172343410000

0.001501