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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 15 |
| 6 | 25 |
| 7 | 34 |
| 8 | 51 |
| 9 | 73 |
| 10 | 97 |
| 11 | 132 |
| 12 | 178 |
| 13 | 226 |
| 14 | 294 |
| 15 | 376 |
| 16 | 466 |
| 17 | 582 |
| 18 | 722 |
| 19 | 872 |
| 20 | 1062 |
| 21 | 1282 |
| 22 | 1522 |
| 23 | 1812 |
| 24 | 2147 |
| 25 | 2507 |
| 26 | 2937 |
| 27 | 3422 |
| 28 | 3947 |
| 29 | 4557 |
| 30 | 5243 |
| 31 | 5978 |
| 32 | 6825 |
| 33 | 7763 |
| 34 | 8771 |
| 35 | 9912 |
| 36 | 11172 |
| 37 | 12516 |
| 38 | 14028 |
| 39 | 15680 |
| 40 | 17444 |
| 41 | 19404 |
| 42 | 21540 |
| 43 | 23808 |
| 44 | 26316 |
| 45 | 29028 |
| 46 | 31908 |
[1,1,3,6,9,15,25,34,51,73,97,132,178,226,294,376, 466,582,722,872,1062,1282,1522,1812,2147,2507, 2937,3422,3947,4557,5243,5978,6825,7763,8771,9912, 11172,12516,14028,15680,17444,19404,21540,23808, 26316,29028,31908] |