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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 36 |
| 3 | 765 |
| 4 | 22932 |
| 5 | 886707 |
| 6 | 41971041 |
| 7 | 2349915543 |
| 8 | 151893243711 |
| 9 | 11131097539221 |
| 10 | 911906584505874 |
| 11 | 82586031357156975 |
| 12 | 8192750710914222984 |
| 13 | 883506535094875209327 |
| 14 | 102907862475072248379060 |
| 15 | 12875067336646598300376165 |
| 16 | 1722014444866824121524712497 |
| 17 | 245185575019136812676809863351 |
| 18 | 37027348593726417935247243009495 |
| 19 | 5911490521308027393188499233189367 |
| 20 | 994821814352463817234026392636083551 |
[1,3,36,765,22932,886707,41971041,2349915543, 151893243711,11131097539221,911906584505874, 82586031357156975,8192750710914222984, 883506535094875209327,102907862475072248379060, 12875067336646598300376165, 1722014444866824121524712497, 245185575019136812676809863351, 37027348593726417935247243009495, 5911490521308027393188499233189367, 994821814352463817234026392636083551] |