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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 15 |
| 4 | 27 |
| 5 | 75 |
| 6 | 165 |
| 7 | 345 |
| 8 | 315 |
| 9 | 693 |
| 10 | 945 |
| 11 | 1365 |
| 12 | 2457 |
| 13 | 2835 |
| 14 | 4455 |
| 15 | 3465 |
| 16 | 4095 |
| 17 | 7245 |
| 18 | 15435 |
| 19 | 12285 |
| 20 | 10395 |
| 21 | 17325 |
| 22 | 27405 |
| 23 | 24255 |
| 24 | 29925 |
| 25 | 31185 |
| 26 | 48195 |
| 27 | 70875 |
| 28 | 45045 |
| 29 | 58905 |
| 30 | 61425 |
| 31 | 89775 |
| 32 | 128205 |
| 33 | 142065 |
| 34 | 121275 |
| 35 | 135135 |
[1,3,15,27,75,165,345,315,693,945,1365,2457,2835, 4455,3465,4095,7245,15435,12285,10395,17325,27405, 24255,29925,31185,48195,70875,45045,58905,61425, 89775,128205,142065,121275,135135] |