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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 10 |
| 3 | 20 |
| 4 | 43 |
| 5 | 75 |
| 6 | 132 |
| 7 | 208 |
| 8 | 325 |
| 9 | 475 |
| 10 | 686 |
| 11 | 948 |
| 12 | 1295 |
| 13 | 1715 |
| 14 | 2248 |
| 15 | 2880 |
| 16 | 3657 |
| 17 | 4563 |
| 18 | 5650 |
| 19 | 6900 |
| 20 | 8371 |
| 21 | 10043 |
| 22 | 11980 |
| 23 | 14160 |
| 24 | 16653 |
| 25 | 19435 |
| 26 | 22582 |
| 27 | 26068 |
| 28 | 29975 |
| 29 | 34275 |
| 30 | 39056 |
| 31 | 44288 |
| 32 | 50065 |
| 33 | 56355 |
| 34 | 63258 |
| 35 | 70740 |
| 36 | 78907 |
| 37 | 87723 |
| 38 | 97300 |
| 39 | 107600 |
| 40 | 118741 |
| 41 | 130683 |
| 42 | 143550 |
| 43 | 157300 |
[1,3,10,20,43,75,132,208,325,475,686,948,1295, 1715,2248,2880,3657,4563,5650,6900,8371,10043, 11980,14160,16653,19435,22582,26068,29975,34275, 39056,44288,50065,56355,63258,70740,78907,87723, 97300,107600,118741,130683,143550,157300] |