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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 1 |
| 7 | 1 |
| 8 | 10 |
| 9 | 10 |
| 10 | 1 |
| 11 | 1 |
| 12 | 20 |
| 13 | 49 |
| 14 | 20 |
| 15 | 1 |
| 16 | 1 |
| 17 | 35 |
| 18 | 168 |
| 19 | 168 |
| 20 | 35 |
| 21 | 1 |
| 22 | 1 |
| 23 | 56 |
| 24 | 462 |
| 25 | 900 |
| 26 | 462 |
| 27 | 56 |
| 28 | 1 |
| 29 | 1 |
| 30 | 84 |
| 31 | 1092 |
| 32 | 3630 |
| 33 | 3630 |
| 34 | 1092 |
| 35 | 84 |
| 36 | 1 |
| 37 | 1 |
| 38 | 120 |
| 39 | 2310 |
| 40 | 12012 |
| 41 | 20449 |
| 42 | 12012 |
| 43 | 2310 |
| 44 | 120 |
| 45 | 1 |
| 46 | 1 |
| 47 | 165 |
| 48 | 4488 |
| 49 | 34320 |
| 50 | 91091 |
| 51 | 91091 |
| 52 | 34320 |
| 53 | 4488 |
| 54 | 165 |
| 55 | 1 |
| 56 | 1 |
| 57 | 220 |
| 58 | 8151 |
| 59 | 87516 |
| 60 | 340340 |
| 61 | 529984 |
| 62 | 340340 |
| 63 | 87516 |
| 64 | 8151 |
| 65 | 220 |
| 66 | 1 |
[1,1,1,1,4,1,1,10,10,1,1,20,49,20,1,1,35,168,168, 35,1,1,56,462,900,462,56,1,1,84,1092,3630,3630, 1092,84,1,1,120,2310,12012,20449,12012,2310,120,1, 1,165,4488,34320,91091,91091,34320,4488,165,1,1, 220,8151,87516,340340,529984,340340,87516,8151, 220,1] |