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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 132 |
| 3 | 84512 |
| 4 | 223951392 |
| 5 | 1685183094272 |
| 6 | 28969792974769152 |
| 7 | 987034310041026732032 |
| 8 | 60293392724182748896038912 |
| 9 | 6128851480537130997344765345792 |
| 10 | 978655905392130555745715195271708672 |
| 11 | 234471526233667759898500618954899615383552 |
| 12 | 81191298195592060653451439857277800300708626432 |
[2,132,84512,223951392,1685183094272, 28969792974769152,987034310041026732032, 60293392724182748896038912, 6128851480537130997344765345792, 978655905392130555745715195271708672, 234471526233667759898500618954899615383552, 81191298195592060653451439857277800300708626432] |