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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 11 |
| 6 | 19 |
| 7 | 28 |
| 8 | 53 |
| 9 | 83 |
| 10 | 140 |
| 11 | 201 |
| 12 | 332 |
| 13 | 486 |
| 14 | 775 |
| 15 | 1207 |
| 16 | 1716 |
| 17 | 2498 |
| 18 | 3870 |
| 19 | 5623 |
| 20 | 8020 |
| 21 | 11276 |
| 22 | 17168 |
| 23 | 23323 |
| 24 | 34746 |
| 25 | 46141 |
| 26 | 64879 |
| 27 | 90467 |
| 28 | 127971 |
| 29 | 176201 |
| 30 | 242869 |
| 31 | 333508 |
| 32 | 456683 |
| 33 | 606403 |
| 34 | 844818 |
| 35 | 1125922 |
| 36 | 1496466 |
| 37 | 2005446 |
| 38 | 2737912 |
| 39 | 3543506 |
| 40 | 4824442 |
[1,1,2,3,7,11,19,28,53,83,140,201,332,486,775, 1207,1716,2498,3870,5623,8020,11276,17168,23323, 34746,46141,64879,90467,127971,176201,242869, 333508,456683,606403,844818,1125922,1496466, 2005446,2737912,3543506,4824442] |