The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 95 |
| 4 | 2865 |
| 5 | 115995 |
| 6 | 5795546 |
| 7 | 341588686 |
| 8 | 23099712021 |
| 9 | 1759081180848 |
| 10 | 148827977847297 |
| 11 | 13846375810530924 |
| 12 | 1405013226803228823 |
| 13 | 154447381376266478808 |
| 14 | 18287299416725063983915 |
| 15 | 2320814090889444342775833 |
| 16 | 314320342934125785370051303 |
[1,1,5,95,2865,115995,5795546,341588686, 23099712021,1759081180848,148827977847297, 13846375810530924,1405013226803228823, 154447381376266478808,18287299416725063983915, 2320814090889444342775833, 314320342934125785370051303] |