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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 30 |
| 4 | 210 |
| 5 | 2310 |
| 6 | 1905 |
| 7 | 1135 |
| 8 | 2815 |
| 9 | 2245 |
| 10 | 2605 |
| 11 | 2630 |
| 12 | 435 |
| 13 | 2210 |
| 14 | 1280 |
| 15 | 785 |
| 16 | 980 |
| 17 | 1570 |
| 18 | 2020 |
| 19 | 965 |
| 20 | 2890 |
| 21 | 1595 |
| 22 | 1005 |
| 23 | 2165 |
| 24 | 2060 |
| 25 | 2945 |
| 26 | 570 |
| 27 | 2460 |
| 28 | 720 |
| 29 | 355 |
| 30 | 2615 |
| 31 | 855 |
| 32 | 2630 |
| 33 | 935 |
| 34 | 1840 |
| 35 | 2285 |
| 36 | 1285 |
| 37 | 1745 |
| 38 | 60 |
| 39 | 645 |
| 40 | 2210 |
| 41 | 1840 |
| 42 | 1790 |
| 43 | 1265 |
| 44 | 395 |
| 45 | 2815 |
| 46 | 810 |
| 47 | 2160 |
| 48 | 430 |
| 49 | 735 |
| 50 | 2690 |
| 51 | 1770 |
| 52 | 1155 |
| 53 | 230 |
| 54 | 1480 |
| 55 | 2235 |
| 56 | 305 |
| 57 | 795 |
[1,2,6,30,210,2310,1905,1135,2815,2245,2605,2630, 435,2210,1280,785,980,1570,2020,965,2890,1595, 1005,2165,2060,2945,570,2460,720,355,2615,855, 2630,935,1840,2285,1285,1745,60,645,2210,1840, 1790,1265,395,2815,810,2160,430,735,2690,1770, 1155,230,1480,2235,305,795] |