The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 289 |
| 4 | 23329 |
| 5 | 3841281 |
| 6 | 1120506121 |
| 7 | 524513713249 |
| 8 | 367074491412609 |
| 9 | 364613085619181569 |
| 10 | 494185594680161941321 |
| 11 | 886218169523023839186081 |
| 12 | 2051077919963790828162320929 |
| 13 | 6001652324304529198555489613569 |
| 14 | 21819462630047750000476711898170569 |
| 15 | 97095627958867654849474515977012836321 |
[1,1,9,289,23329,3841281,1120506121,524513713249, 367074491412609,364613085619181569, 494185594680161941321,886218169523023839186081, 2051077919963790828162320929, 6001652324304529198555489613569, 21819462630047750000476711898170569, 97095627958867654849474515977012836321] |