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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 13 |
| 9 | 18 |
| 10 | 24 |
| 11 | 32 |
| 12 | 41 |
| 13 | 52 |
| 14 | 64 |
| 15 | 78 |
| 16 | 94 |
| 17 | 112 |
| 18 | 132 |
| 19 | 155 |
| 20 | 180 |
| 21 | 208 |
| 22 | 238 |
| 23 | 271 |
| 24 | 307 |
| 25 | 346 |
| 26 | 388 |
| 27 | 434 |
| 28 | 483 |
| 29 | 536 |
| 30 | 592 |
| 31 | 652 |
| 32 | 716 |
| 33 | 784 |
| 34 | 856 |
| 35 | 933 |
| 36 | 1014 |
| 37 | 1100 |
| 38 | 1190 |
| 39 | 1285 |
| 40 | 1385 |
| 41 | 1490 |
| 42 | 1600 |
| 43 | 1716 |
| 44 | 1837 |
| 45 | 1964 |
| 46 | 2096 |
| 47 | 2234 |
| 48 | 2378 |
| 49 | 2528 |
| 50 | 2684 |
[0,0,0,1,2,4,6,9,13,18,24,32,41,52,64,78,94,112, 132,155,180,208,238,271,307,346,388,434,483,536, 592,652,716,784,856,933,1014,1100,1190,1285,1385, 1490,1600,1716,1837,1964,2096,2234,2378,2528,2684] |