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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 10 |
| 6 | 16 |
| 7 | 31 |
| 8 | 43 |
| 9 | 68 |
| 10 | 98 |
| 11 | 153 |
| 12 | 213 |
| 13 | 317 |
| 14 | 443 |
| 15 | 704 |
| 16 | 971 |
| 17 | 1415 |
| 18 | 1975 |
| 19 | 2818 |
| 20 | 3865 |
| 21 | 5401 |
| 22 | 7366 |
| 23 | 10142 |
| 24 | 13639 |
| 25 | 18438 |
| 26 | 24583 |
| 27 | 32861 |
| 28 | 43345 |
| 29 | 57268 |
| 30 | 75175 |
| 31 | 99119 |
| 32 | 129278 |
| 33 | 168796 |
| 34 | 219614 |
| 35 | 284887 |
| 36 | 368546 |
| 37 | 475919 |
| 38 | 614379 |
| 39 | 788845 |
| 40 | 1012117 |
| 41 | 1293980 |
| 42 | 1654090 |
[1,1,2,4,6,10,16,31,43,68,98,153,213,317,443,704, 971,1415,1975,2818,3865,5401,7366,10142,13639, 18438,24583,32861,43345,57268,75175,99119,129278, 168796,219614,284887,368546,475919,614379,788845, 1012117,1293980,1654090] |