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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 19 |
| 6 | 37 |
| 7 | 58 |
| 8 | 97 |
| 9 | 143 |
| 10 | 227 |
| 11 | 328 |
| 12 | 492 |
| 13 | 688 |
| 14 | 992 |
| 15 | 1364 |
| 16 | 1903 |
| 17 | 2551 |
| 18 | 3473 |
| 19 | 4586 |
| 20 | 6097 |
| 21 | 7911 |
| 22 | 10333 |
| 23 | 13226 |
| 24 | 16988 |
| 25 | 21454 |
| 26 | 27172 |
| 27 | 33938 |
| 28 | 42437 |
| 29 | 52423 |
| 30 | 64833 |
| 31 | 79354 |
| 32 | 97130 |
| 33 | 117824 |
| 34 | 142930 |
| 35 | 172018 |
| 36 | 206925 |
| 37 | 247179 |
| 38 | 295105 |
| 39 | 350154 |
| 40 | 415124 |
[1,1,3,6,13,19,37,58,97,143,227,328,492,688,992, 1364,1903,2551,3473,4586,6097,7911,10333,13226, 16988,21454,27172,33938,42437,52423,64833,79354, 97130,117824,142930,172018,206925,247179,295105, 350154,415124] |