Squares

Front 1

11^2

Back 1

121

Front 2

12^2

Back 2

144

Front 3

13^2

Back 3

169

Front 4

14^2

Back 4

196

Front 5

15^2

Back 5

225

Front 6

16^2

Back 6

256

Front 7

17^2

Back 7

289

Front 8

18^2

Back 8

324

Front 9

19^2

Back 9

361

Front 10

20^2

Back 10

400

Front 11

21^2

Back 11

441

Front 12

22^2

Back 12

484

Front 13

23^2

Back 13

529

Front 14

24^2

Back 14

576

Front 15

25^2

Back 15

625

Front 16

26^2

Back 16

676

Front 17

27^2

Back 17

729

Front 18

28^2

Back 18

784

Front 19

29^2

Back 19

841

Front 20

30^2

Back 20

900