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| n | a(n) |
|---|---|
| 2 | 15 |
| 3 | 231 |
| 4 | 45 |
| 5 | 165 |
| 6 | 2145 |
| 7 | 105 |
| 8 | 153 |
| 9 | 8911 |
| 10 | 693 |
| 11 | 207 |
| 12 | 25425 |
| 13 | 1683 |
| 14 | 957 |
| 15 | 58311 |
| 16 | 1001 |
| 17 | 10465 |
| 18 | 115921 |
| 19 | 6435 |
| 20 | 19065 |
| 21 | 208335 |
| 22 | 10965 |
| 23 | 2961 |
| 24 | 347361 |
| 25 | 2907 |
| 26 | 5035 |
| 27 | 546535 |
| 28 | 26733 |
| 29 | 18585 |
| 30 | 821121 |
| 31 | 39123 |
| 32 | 112125 |
| 33 | 1188111 |
| 34 | 7475 |
| 35 | 157975 |
| 36 | 1666225 |
| 37 | 76275 |
[15,231,45,165,2145,105,153,8911,693,207,25425, 1683,957,58311,1001,10465,115921,6435,19065, 208335,10965,2961,347361,2907,5035,546535,26733, 18585,821121,39123,112125,1188111,7475,157975, 1666225,76275] |