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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 16 |
| 6 | 24 |
| 7 | 42 |
| 8 | 61 |
| 9 | 108 |
| 10 | 151 |
| 11 | 253 |
| 12 | 369 |
| 13 | 607 |
| 14 | 847 |
| 15 | 1400 |
| 16 | 1954 |
| 17 | 3139 |
| 18 | 4398 |
| 19 | 6976 |
| 20 | 9583 |
| 21 | 15456 |
| 22 | 20982 |
| 23 | 32816 |
| 24 | 45417 |
| 25 | 70109 |
| 26 | 94499 |
| 27 | 148234 |
| 28 | 200768 |
| 29 | 308213 |
| 30 | 415543 |
| 31 | 634270 |
| 32 | 849877 |
| 33 | 1311244 |
| 34 | 1739022 |
| 35 | 2630061 |
| 36 | 3540355 |
| 37 | 5344961 |
| 38 | 7051789 |
| 39 | 10747207 |
| 40 | 14158720 |
| 41 | 21295570 |
| 42 | 28188520 |
[1,2,3,6,9,16,24,42,61,108,151,253,369,607,847, 1400,1954,3139,4398,6976,9583,15456,20982,32816, 45417,70109,94499,148234,200768,308213,415543, 634270,849877,1311244,1739022,2630061,3540355, 5344961,7051789,10747207,14158720,21295570, 28188520] |