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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 7 |
| 3 | 22 |
| 4 | 50 |
| 5 | 95 |
| 6 | 161 |
| 7 | 252 |
| 8 | 372 |
| 9 | 525 |
| 10 | 715 |
| 11 | 946 |
| 12 | 1222 |
| 13 | 1547 |
| 14 | 1925 |
| 15 | 2360 |
| 16 | 2856 |
| 17 | 3417 |
| 18 | 4047 |
| 19 | 4750 |
| 20 | 5530 |
| 21 | 6391 |
| 22 | 7337 |
| 23 | 8372 |
| 24 | 9500 |
| 25 | 10725 |
| 26 | 12051 |
| 27 | 13482 |
| 28 | 15022 |
| 29 | 16675 |
| 30 | 18445 |
| 31 | 20336 |
| 32 | 22352 |
| 33 | 24497 |
| 34 | 26775 |
| 35 | 29190 |
| 36 | 31746 |
| 37 | 34447 |
| 38 | 37297 |
| 39 | 40300 |
[0,1,7,22,50,95,161,252,372,525,715,946,1222,1547, 1925,2360,2856,3417,4047,4750,5530,6391,7337,8372, 9500,10725,12051,13482,15022,16675,18445,20336, 22352,24497,26775,29190,31746,34447,37297,40300] |