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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 9 |
| 10 | 8 |
| 11 | 18 |
| 12 | 21 |
| 13 | 45 |
| 14 | 48 |
| 15 | 88 |
| 16 | 96 |
| 17 | 198 |
| 18 | 153 |
| 19 | 369 |
| 20 | 298 |
| 21 | 542 |
| 22 | 533 |
| 23 | 1107 |
| 24 | 673 |
| 25 | 1695 |
| 26 | 1375 |
| 27 | 2280 |
| 28 | 2017 |
| 29 | 4392 |
| 30 | 1962 |
| 31 | 6588 |
| 32 | 4668 |
| 33 | 7337 |
| 34 | 6695 |
| 35 | 11924 |
| 36 | 6703 |
| 37 | 19746 |
| 38 | 13220 |
| 39 | 20416 |
| 40 | 15497 |
| 41 | 37854 |
| 42 | 15056 |
| 43 | 51372 |
| 44 | 31987 |
| 45 | 43358 |
| 46 | 43930 |
| 47 | 91404 |
| 48 | 39701 |
| 49 | 111571 |
| 50 | 62525 |
[0,0,0,0,0,0,0,0,9,8,18,21,45,48,88,96,198,153, 369,298,542,533,1107,673,1695,1375,2280,2017,4392, 1962,6588,4668,7337,6695,11924,6703,19746,13220, 20416,15497,37854,15056,51372,31987,43358,43930, 91404,39701,111571,62525] |