The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 184 |
| 5 | 8512 |
| 6 | 1262816 |
| 7 | 575780564 |
| 8 | 789360053252 |
| 9 | 3266598486981642 |
| 10 | 41044208702632496804 |
| 11 | 1568758030464750013214100 |
| 12 | 182413291514248049241470885236 |
| 13 | 64528039343270018963357185158482118 |
| 14 | 69450664761521361664274701548907358996488 |
[1,2,12,184,8512,1262816,575780564,789360053252, 3266598486981642,41044208702632496804, 1568758030464750013214100, 182413291514248049241470885236, 64528039343270018963357185158482118, 69450664761521361664274701548907358996488] |