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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 1 |
| 7 | 1 |
| 8 | 6 |
| 9 | 6 |
| 10 | 1 |
| 11 | 1 |
| 12 | 8 |
| 13 | 12 |
| 14 | 8 |
| 15 | 1 |
| 16 | 1 |
| 17 | 10 |
| 18 | 20 |
| 19 | 20 |
| 20 | 10 |
| 21 | 1 |
| 22 | 1 |
| 23 | 12 |
| 24 | 30 |
| 25 | 40 |
| 26 | 30 |
| 27 | 12 |
| 28 | 1 |
| 29 | 1 |
| 30 | 14 |
| 31 | 42 |
| 32 | 70 |
| 33 | 70 |
| 34 | 42 |
| 35 | 14 |
| 36 | 1 |
| 37 | 1 |
| 38 | 16 |
| 39 | 56 |
| 40 | 112 |
| 41 | 140 |
| 42 | 112 |
| 43 | 56 |
| 44 | 16 |
| 45 | 1 |
| 46 | 1 |
| 47 | 18 |
| 48 | 72 |
| 49 | 168 |
| 50 | 252 |
| 51 | 252 |
| 52 | 168 |
| 53 | 72 |
| 54 | 18 |
| 55 | 1 |
| 56 | 1 |
| 57 | 20 |
| 58 | 90 |
| 59 | 240 |
| 60 | 420 |
| 61 | 504 |
| 62 | 420 |
| 63 | 240 |
| 64 | 90 |
| 65 | 20 |
| 66 | 1 |
[1,1,1,1,4,1,1,6,6,1,1,8,12,8,1,1,10,20,20,10,1,1, 12,30,40,30,12,1,1,14,42,70,70,42,14,1,1,16,56, 112,140,112,56,16,1,1,18,72,168,252,252,168,72,18, 1,1,20,90,240,420,504,420,240,90,20,1] |