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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 25 |
| 6 | 50 |
| 7 | 84 |
| 8 | 165 |
| 9 | 280 |
| 10 | 503 |
| 11 | 826 |
| 12 | 1477 |
| 13 | 2386 |
| 14 | 4067 |
| 15 | 6625 |
| 16 | 11032 |
| 17 | 17605 |
| 18 | 29039 |
| 19 | 45820 |
| 20 | 74708 |
| 21 | 117410 |
| 22 | 187691 |
| 23 | 293155 |
| 24 | 467733 |
| 25 | 724421 |
| 26 | 1140157 |
| 27 | 1763581 |
| 28 | 2758717 |
| 29 | 4238285 |
| 30 | 6599926 |
| 31 | 10082054 |
| 32 | 15609032 |
| 33 | 23819315 |
| 34 | 36607147 |
| 35 | 55644926 |
| 36 | 85380815 |
| 37 | 129185681 |
[1,1,3,6,14,25,50,84,165,280,503,826,1477,2386, 4067,6625,11032,17605,29039,45820,74708,117410, 187691,293155,467733,724421,1140157,1763581, 2758717,4238285,6599926,10082054,15609032, 23819315,36607147,55644926,85380815,129185681] |