Show:
x2
x3
x4
x5
x6
100

2x2

4

100

3x3

9

100

4x4

16

100

5x5

25

100

6x3

18

200

2x3

6

200

3x4

12

200

4x5

20

200

5x7

35

200

6x4

24

300

2x4

8

300

3x6

18

300

4x6

24

300

5x8

40

300

6x5

30

400

2x5

10

400

3x7

21

400

4x7

28

400

5x9

45

400

6x8

48

500

2x6

12

500

3x9

27

500

4x9

36

500

5x11

55

500
6x9

54