Diff. 1 Diff. 2 Diff. 3 Diff. 4 …

1^st series: 1 1 2 3 5 8

0 1 1 2 3

2^nd series: 1 2 3 5 8 13

1 1 2 3 5

3^rd series: 2 4 6 10 16 26

2 2 4 6 10

4^th series: 4 7 11 18 29 47

3 4 7 11 18

5^th series: 7 12 19 31 50 81

5 7 12 19 31

6^th series: 12 20 32 52 84 136

8 12 20 32 52

7^th series: 20 33 53 86 139 225

13 20 33 53 86