ALLUDED TO BY EEEMAT. 
So 
From 57 to 73 is 8 steps 
(one more than the last); but 
the series of odd numbers 
goes on 10 steps further. 
1 0 0 
3, 4, 4, 4 
— 
57 
0 1 1 
3, 3, 4, 5 
= 
59 
2 0 1 
2, 4, 4, 5 
= 
61 
1 2 0 
2, 3, 5, 5 
= 
63 
1 1 2 
2, 3, 4, 6 
= 
65 
3 1 0 
1, 4, 5, 5 
— 
67 
3 0 2 
1, 4, 4, 6 
= 
69 
2 2 1 
1, 3, 5, 6 
— 
71 
0 2 3 
2 2 4 7 
* J , "J ^5 ' 
— 
73 
2 1 3 
1, 3, 4, 7 
— 
75 
4 1 1 
0, 4, 5, 6 
= 
77 
1 3 2 
1, 2, 5, 7 
— 
79 
3 3 0 
0, 3, 6, 6 
= 
81 
3 2 2 
0, 3, 5, 7 
= 
83 
1 2 4 
1, 2, 4, 8 
= 
85 
0 5 1 
1, 1, 6, 7 
— 
87 
2 4 1 
0, 2, 6, 7 
— 
89 
0 4 3 
1, 1, 5, 8 
— 
91 
2 3 3 
0, 2, 5, 8 
= 
93 
The differences are the same, but are reversed, and this occurs alternately. 
