The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 1 |
| 6 | 1 |
| 7 | 15 |
| 8 | 3 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 105 |
| 13 | 15 |
| 14 | 3 |
| 15 | 3 |
| 16 | 1 |
| 17 | 1 |
| 18 | 1 |
| 19 | 945 |
| 20 | 105 |
| 21 | 15 |
| 22 | 9 |
| 23 | 15 |
| 24 | 3 |
| 25 | 1 |
| 26 | 3 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 10395 |
| 31 | 945 |
| 32 | 105 |
| 33 | 45 |
| 34 | 105 |
| 35 | 15 |
| 36 | 9 |
| 37 | 3 |
| 38 | 15 |
| 39 | 3 |
| 40 | 1 |
| 41 | 3 |
| 42 | 1 |
| 43 | 1 |
| 44 | 1 |
| 45 | 135135 |
| 46 | 10395 |
| 47 | 945 |
| 48 | 315 |
| 49 | 225 |
| 50 | 945 |
| 51 | 105 |
| 52 | 45 |
| 53 | 15 |
| 54 | 9 |
| 55 | 105 |
| 56 | 15 |
| 57 | 9 |
| 58 | 3 |
| 59 | 1 |
| 60 | 15 |
| 61 | 3 |
| 62 | 1 |
| 63 | 3 |
| 64 | 1 |
| 65 | 1 |
| 66 | 1 |
| 67 | 2027025 |
| 68 | 135135 |
| 69 | 10395 |
| 70 | 2835 |
[1,1,1,3,1,1,15,3,1,1,1,105,15,3,3,1,1,1,945,105, 15,9,15,3,1,3,1,1,1,10395,945,105,45,105,15,9,3, 15,3,1,3,1,1,1,135135,10395,945,315,225,945,105, 45,15,9,105,15,9,3,1,15,3,1,3,1,1,1,2027025, 135135,10395,2835] |