The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1727 |
| 5 | 20652479 |
| 6 | 2059268143 |
| 7 | 24860948333867803 |
| 8 | 145905074443586569379 |
| 9 | 4567419249415312673370820607 |
| 10 | 1642142815363470261591271553081 |
| 11 | 4093745592094627817260334517735412136353665283 |
[1,1,1,1727,20652479,2059268143,24860948333867803, 145905074443586569379, 4567419249415312673370820607, 1642142815363470261591271553081, 4093745592094627817260334517735412136353665283] |