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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 13 |
| 9 | 18 |
| 10 | 24 |
| 11 | 34 |
| 12 | 44 |
| 13 | 61 |
| 14 | 78 |
| 15 | 104 |
| 16 | 133 |
| 17 | 176 |
| 18 | 221 |
| 19 | 288 |
| 20 | 360 |
| 21 | 462 |
| 22 | 575 |
| 23 | 729 |
| 24 | 901 |
| 25 | 1132 |
| 26 | 1393 |
| 27 | 1733 |
| 28 | 2120 |
| 29 | 2620 |
| 30 | 3190 |
| 31 | 3913 |
| 32 | 4744 |
| 33 | 5784 |
| 34 | 6983 |
| 35 | 8464 |
| 36 | 10176 |
| 37 | 12276 |
| 38 | 14704 |
| 39 | 17652 |
| 40 | 21064 |
| 41 | 25184 |
| 42 | 29951 |
| 43 | 35664 |
| 44 | 42276 |
| 45 | 50157 |
| 46 | 59274 |
| 47 | 70081 |
| 48 | 82572 |
[0,1,1,3,4,6,9,13,18,24,34,44,61,78,104,133,176, 221,288,360,462,575,729,901,1132,1393,1733,2120, 2620,3190,3913,4744,5784,6983,8464,10176,12276, 14704,17652,21064,25184,29951,35664,42276,50157, 59274,70081,82572] |