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| n | a(n) |
|---|---|
| 4 | 2 |
| 5 | 9 |
| 6 | 26 |
| 7 | 59 |
| 8 | 116 |
| 9 | 206 |
| 10 | 340 |
| 11 | 530 |
| 12 | 790 |
| 13 | 1135 |
| 14 | 1582 |
| 15 | 2149 |
| 16 | 2856 |
| 17 | 3724 |
| 18 | 4776 |
| 19 | 6036 |
| 20 | 7530 |
| 21 | 9285 |
| 22 | 11330 |
| 23 | 13695 |
| 24 | 16412 |
| 25 | 19514 |
| 26 | 23036 |
| 27 | 27014 |
| 28 | 31486 |
| 29 | 36491 |
| 30 | 42070 |
| 31 | 48265 |
| 32 | 55120 |
| 33 | 62680 |
| 34 | 70992 |
| 35 | 80104 |
| 36 | 90066 |
| 37 | 100929 |
| 38 | 112746 |
| 39 | 125571 |
| 40 | 139460 |
| 41 | 154470 |
[2,9,26,59,116,206,340,530,790,1135,1582,2149, 2856,3724,4776,6036,7530,9285,11330,13695,16412, 19514,23036,27014,31486,36491,42070,48265,55120, 62680,70992,80104,90066,100929,112746,125571, 139460,154470] |