Main table :
Some (interesting) observations :
- Just a minor note :
| A
|
B
|
C
|
...
|
|
110
|
108
|
104
|
98
|
90
|
80
|
68
|
54
|
38
|
20
|
| A-B
|
B-C
|
...
|
|
|
2
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
|
- Perfect squares are alternatively odd, then even (in fact, an odd number will produce an odd square number, and even number will produce an even one).