The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 32 |
| 3 | 216 |
| 4 | 1024 |
| 5 | 4000 |
| 6 | 13824 |
| 7 | 43904 |
| 8 | 131072 |
| 9 | 373248 |
| 10 | 1024000 |
| 11 | 2725888 |
| 12 | 7077888 |
| 13 | 17997824 |
| 14 | 44957696 |
| 15 | 110592000 |
| 16 | 268435456 |
| 17 | 643956736 |
| 18 | 1528823808 |
| 19 | 3596091392 |
| 20 | 8388608000 |
| 21 | 19421724672 |
| 22 | 44660948992 |
| 23 | 102064193536 |
| 24 | 231928233984 |
[0,2,32,216,1024,4000,13824,43904,131072,373248, 1024000,2725888,7077888,17997824,44957696, 110592000,268435456,643956736,1528823808, 3596091392,8388608000,19421724672,44660948992, 102064193536,231928233984] |