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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 3 |
| 6 | 6 |
| 7 | 13 |
| 8 | 22 |
| 9 | 38 |
| 10 | 58 |
| 11 | 93 |
| 12 | 134 |
| 13 | 202 |
| 14 | 282 |
| 15 | 405 |
| 16 | 554 |
| 17 | 774 |
| 18 | 1035 |
| 19 | 1412 |
| 20 | 1862 |
| 21 | 2489 |
| 22 | 3243 |
| 23 | 4267 |
| 24 | 5496 |
| 25 | 7137 |
| 26 | 9106 |
| 27 | 11684 |
| 28 | 14782 |
| 29 | 18782 |
| 30 | 23575 |
| 31 | 29689 |
| 32 | 37010 |
| 33 | 46238 |
| 34 | 57275 |
| 35 | 71048 |
| 36 | 87489 |
| 37 | 107844 |
| 38 | 132083 |
| 39 | 161853 |
| 40 | 197243 |
| 41 | 240418 |
| 42 | 291619 |
| 43 | 353702 |
| 44 | 427167 |
[0,0,0,0,1,3,6,13,22,38,58,93,134,202,282,405,554, 774,1035,1412,1862,2489,3243,4267,5496,7137,9106, 11684,14782,18782,23575,29689,37010,46238,57275, 71048,87489,107844,132083,161853,197243,240418, 291619,353702,427167] |