The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 864 |
| 3 | 20736 |
| 4 | 395280 |
| 5 | 7535025 |
| 6 | 150305220 |
| 7 | 2998219536 |
| 8 | 59481442800 |
| 9 | 1180047690000 |
| 10 | 23367447097200 |
| 11 | 462725013969936 |
| 12 | 9164960558748720 |
| 13 | 181525743168224400 |
| 14 | 3595660883206991280 |
| 15 | 71222830224380145936 |
[36,864,20736,395280,7535025,150305220,2998219536, 59481442800,1180047690000,23367447097200, 462725013969936,9164960558748720, 181525743168224400,3595660883206991280, 71222830224380145936] |