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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 3 |
| 6 | 8 |
| 7 | 8 |
| 8 | 17 |
| 9 | 23 |
| 10 | 41 |
| 11 | 55 |
| 12 | 102 |
| 13 | 144 |
| 14 | 247 |
| 15 | 387 |
| 16 | 631 |
| 17 | 987 |
| 18 | 1636 |
| 19 | 2584 |
| 20 | 4233 |
| 21 | 6787 |
| 22 | 11011 |
| 23 | 17711 |
| 24 | 28794 |
| 25 | 46380 |
| 26 | 75181 |
| 27 | 121441 |
| 28 | 196685 |
| 29 | 317811 |
| 30 | 514712 |
| 31 | 832040 |
| 32 | 1346921 |
| 33 | 2178429 |
| 34 | 3525581 |
| 35 | 5702937 |
| 36 | 9229314 |
| 37 | 14930352 |
| 38 | 24160419 |
| 39 | 39088469 |
| 40 | 63250315 |
| 41 | 102334155 |
[0,1,1,3,3,8,8,17,23,41,55,102,144,247,387,631, 987,1636,2584,4233,6787,11011,17711,28794,46380, 75181,121441,196685,317811,514712,832040,1346921, 2178429,3525581,5702937,9229314,14930352,24160419, 39088469,63250315,102334155] |