The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 82 |
| 4 | 5529 |
| 5 | 1305001 |
| 6 | 1246227380 |
| 7 | 4371464163984 |
| 8 | 63016773178936689 |
| 9 | 3402552304257053274586 |
| 10 | 763565844226555199268790625 |
| 11 | 646167055423310071202629440787777 |
| 12 | 2286555305348402925289061763545121627792 |
| 13 | 30572734528101754143849564382255256328804437905 |
| 14 | 1715114378944460721111177450683240739069441328724776192 |
[1,1,5,82,5529,1305001,1246227380,4371464163984, 63016773178936689,3402552304257053274586, 763565844226555199268790625, 646167055423310071202629440787777, 2286555305348402925289061763545121627792, 30572734528101754143849564382255256328804437905, 17151143789444607211111774506832407390694413287247\ 76192] |