The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 13 |
| 3 | 629 |
| 4 | 58993 |
| 5 | 8998399 |
| 6 | 2035844461 |
| 7 | 640881617123 |
| 8 | 267995012680641 |
| 9 | 143734541641235567 |
| 10 | 96200314049944377901 |
| 11 | 78599287990433271805699 |
| 12 | 76993408916168689318057201 |
| 13 | 89072357257840197226050646151 |
[1,0,13,629,58993,8998399,2035844461,640881617123, 267995012680641,143734541641235567, 96200314049944377901,78599287990433271805699, 76993408916168689318057201, 89072357257840197226050646151] |