The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4782969 |
| 2 | 410338673 |
| 3 | 6103515625 |
| 4 | 42618442977 |
| 5 | 194754273881 |
| 6 | 678223072849 |
| 7 | 1954897493193 |
| 8 | 4902227890625 |
| 9 | 11047398519097 |
| 10 | 22876792454961 |
| 11 | 44231334895529 |
| 12 | 80798284478113 |
| 13 | 140710042265625 |
[1,4782969,410338673,6103515625,42618442977, 194754273881,678223072849,1954897493193, 4902227890625,11047398519097,22876792454961, 44231334895529,80798284478113,140710042265625] |