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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 11 |
| 5 | 26 |
| 6 | 46 |
| 7 | 84 |
| 8 | 123 |
| 9 | 194 |
| 10 | 268 |
| 11 | 378 |
| 12 | 478 |
| 13 | 657 |
| 14 | 800 |
| 15 | 1019 |
| 16 | 1239 |
| 17 | 1548 |
| 18 | 1793 |
| 19 | 2197 |
| 20 | 2505 |
| 21 | 3003 |
| 22 | 3434 |
| 23 | 3991 |
| 24 | 4444 |
| 25 | 5223 |
| 26 | 5801 |
| 27 | 6582 |
| 28 | 7292 |
| 29 | 8274 |
| 30 | 9006 |
| 31 | 10199 |
| 32 | 11034 |
| 33 | 12330 |
| 34 | 13398 |
| 35 | 14744 |
| 36 | 15912 |
| 37 | 17705 |
| 38 | 18906 |
| 39 | 20586 |
[0,1,4,11,26,46,84,123,194,268,378,478,657,800, 1019,1239,1548,1793,2197,2505,3003,3434,3991,4444, 5223,5801,6582,7292,8274,9006,10199,11034,12330, 13398,14744,15912,17705,18906,20586] |