Show:
x2
x3
X4
x5
X6
100

2x2

4

100

3x2

6

100

4x1

4

100

5x2

10

100

6x3

18

200

2x4

8

200

3x3

9

200

4x3

12

200

5x5

25

200

6x5

30

300

2x8

14

300

3x6

18

300

4x4

16

300

5x7

35

300

6x6

36

400

2x7

14

400

3x7

21

400

4x6

24

400

5x11

55

400

6x7

42

500

2x12

48

500

3x12

36

500

4x8

32

500

5x12

60

500

6x12

72