50

1 1 

2 4 

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4 6 

5 7 

6 8 

7 9 

8 10 

9 11 

10 12 

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12 14 

13 15 

14 16 

15 17 

16 18 

17 19 

18 22 

19 23 

20 25 

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23 28 

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27 32 

28 33 

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30 35 

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32 37 

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35 40 

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41 47 

42 48 

43 50 

44 52 

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46 54 + 55 

47 58 

48 56 + 57 

49 58 

50 59 

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54 63 