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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 12 |
| 6 | 16 |
| 7 | 21 |
| 8 | 26 |
| 9 | 40 |
| 10 | 73 |
| 11 | 106 |
| 12 | 139 |
| 13 | 172 |
| 14 | 205 |
| 15 | 238 |
| 16 | 271 |
| 17 | 417 |
| 18 | 516 |
| 19 | 549 |
| 20 | 893 |
| 21 | 1237 |
| 22 | 1581 |
| 23 | 1958 |
| 24 | 2302 |
| 25 | 3023 |
| 26 | 3367 |
| 27 | 4088 |
| 28 | 10822 |
| 29 | 20407 |
| 30 | 25732 |
| 31 | 26797 |
| 32 | 78261 |
| 33 | 182254 |
| 34 | 338776 |
| 35 | 442769 |
| 36 | 599291 |
| 37 | 859806 |
| 38 | 1120321 |
| 39 | 1380836 |
| 40 | 2318903 |
| 41 | 4559545 |
| 42 | 6279157 |
[1,2,3,7,12,16,21,26,40,73,106,139,172,205,238, 271,417,516,549,893,1237,1581,1958,2302,3023,3367, 4088,10822,20407,25732,26797,78261,182254,338776, 442769,599291,859806,1120321,1380836,2318903, 4559545,6279157] |