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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 15 |
| 5 | 29 |
| 6 | 59 |
| 7 | 99 |
| 8 | 170 |
| 9 | 262 |
| 10 | 401 |
| 11 | 570 |
| 12 | 816 |
| 13 | 1103 |
| 14 | 1499 |
| 15 | 1956 |
| 16 | 2534 |
| 17 | 3195 |
| 18 | 4041 |
| 19 | 4980 |
| 20 | 6153 |
| 21 | 7448 |
| 22 | 8985 |
| 23 | 10674 |
| 24 | 12704 |
| 25 | 14899 |
| 26 | 17473 |
| 27 | 20262 |
| 28 | 23467 |
| 29 | 26914 |
| 30 | 30905 |
| 31 | 35138 |
| 32 | 39996 |
| 33 | 45191 |
| 34 | 50997 |
[1,3,6,15,29,59,99,170,262,401,570,816,1103,1499, 1956,2534,3195,4041,4980,6153,7448,8985,10674, 12704,14899,17473,20262,23467,26914,30905,35138, 39996,45191,50997] |