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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 6 |
| 8 | 8 |
| 9 | 11 |
| 10 | 15 |
| 11 | 20 |
| 12 | 28 |
| 13 | 38 |
| 14 | 52 |
| 15 | 71 |
| 16 | 97 |
| 17 | 132 |
| 18 | 181 |
| 19 | 247 |
| 20 | 337 |
| 21 | 461 |
| 22 | 629 |
| 23 | 860 |
| 24 | 1174 |
| 25 | 1604 |
| 26 | 2191 |
| 27 | 2993 |
| 28 | 4089 |
| 29 | 5585 |
| 30 | 7630 |
| 31 | 10422 |
| 32 | 14237 |
| 33 | 19448 |
| 34 | 26567 |
| 35 | 36291 |
| 36 | 49574 |
| 37 | 67720 |
| 38 | 92507 |
| 39 | 126367 |
| 40 | 172620 |
| 41 | 235804 |
| 42 | 322114 |
[1,1,1,2,2,3,4,6,8,11,15,20,28,38,52,71,97,132, 181,247,337,461,629,860,1174,1604,2191,2993,4089, 5585,7630,10422,14237,19448,26567,36291,49574, 67720,92507,126367,172620,235804,322114] |