We do the same again and again we get

1st series: 1 1 2 3 5 8 13 21 34 55 89

2nd series: 1 2 3 5 8 13 21 34 55 89 144

3rd series: 2 4 6 10 16 26 42 68 110 178 288

4th series: 4 7 11 18 29 47 76 123 199 322 521

5th series: 7 12 19 31 50 81 131 212 343 555 898

6th series: 12 20 32 52 84 136 220 356 576 932 1508