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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 13 |
| 6 | 21 |
| 7 | 37 |
| 8 | 58 |
| 9 | 96 |
| 10 | 153 |
| 11 | 243 |
| 12 | 376 |
| 13 | 584 |
| 14 | 897 |
| 15 | 1353 |
| 16 | 2046 |
| 17 | 3060 |
| 18 | 4552 |
| 19 | 6714 |
| 20 | 9862 |
| 21 | 14386 |
| 22 | 20898 |
| 23 | 30198 |
| 24 | 43427 |
| 25 | 62159 |
| 26 | 88600 |
| 27 | 125804 |
| 28 | 177881 |
| 29 | 250615 |
| 30 | 351819 |
| 31 | 492203 |
| 32 | 686294 |
| 33 | 953954 |
| 34 | 1321902 |
| 35 | 1826394 |
| 36 | 2516364 |
| 37 | 3457332 |
| 38 | 4737576 |
| 39 | 6475332 |
[1,1,2,4,7,13,21,37,58,96,153,243,376,584,897, 1353,2046,3060,4552,6714,9862,14386,20898,30198, 43427,62159,88600,125804,177881,250615,351819, 492203,686294,953954,1321902,1826394,2516364, 3457332,4737576,6475332] |