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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 10 |
| 4 | 35 |
| 5 | 165 |
| 6 | 286 |
| 7 | 969 |
| 8 | 1771 |
| 9 | 2925 |
| 10 | 3654 |
| 11 | 4495 |
| 12 | 9139 |
| 13 | 12341 |
| 14 | 16215 |
| 15 | 23426 |
| 16 | 32509 |
| 17 | 39711 |
| 18 | 47905 |
| 19 | 52394 |
| 20 | 67525 |
| 21 | 79079 |
| 22 | 91881 |
| 23 | 105995 |
| 24 | 129766 |
| 25 | 138415 |
| 26 | 156849 |
| 27 | 176851 |
| 28 | 209934 |
| 29 | 221815 |
| 30 | 246905 |
| 31 | 273819 |
| 32 | 302621 |
| 33 | 366145 |
| 34 | 383306 |
| 35 | 437989 |
| 36 | 477191 |
| 37 | 540274 |
| 38 | 562475 |
| 39 | 657359 |
| 40 | 708561 |
| 41 | 762355 |
| 42 | 848046 |
| 43 | 939929 |
| 44 | 1004731 |
[1,4,10,35,165,286,969,1771,2925,3654,4495,9139, 12341,16215,23426,32509,39711,47905,52394,67525, 79079,91881,105995,129766,138415,156849,176851, 209934,221815,246905,273819,302621,366145,383306, 437989,477191,540274,562475,657359,708561,762355, 848046,939929,1004731] |