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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 5 |
| 6 | 8 |
| 7 | 16 |
| 8 | 22 |
| 9 | 39 |
| 10 | 86 |
| 11 | 110 |
| 12 | 218 |
| 13 | 335 |
| 14 | 412 |
| 15 | 613 |
| 16 | 1082 |
| 17 | 1849 |
| 18 | 2197 |
| 19 | 3629 |
| 20 | 5006 |
| 21 | 5860 |
| 22 | 9281 |
| 23 | 12487 |
| 24 | 19231 |
| 25 | 33438 |
| 26 | 43708 |
| 27 | 49870 |
| 28 | 64670 |
| 29 | 73505 |
| 30 | 94624 |
| 31 | 221264 |
| 32 | 279515 |
| 33 | 394169 |
| 34 | 441249 |
| 35 | 766261 |
| 36 | 853691 |
| 37 | 1175343 |
| 38 | 1608013 |
| 39 | 1975107 |
| 40 | 2675924 |
| 41 | 3605665 |
| 42 | 3977860 |
[0,0,1,2,5,8,16,22,39,86,110,218,335,412,613,1082, 1849,2197,3629,5006,5860,9281,12487,19231,33438, 43708,49870,64670,73505,94624,221264,279515, 394169,441249,766261,853691,1175343,1608013, 1975107,2675924,3605665,3977860] |