The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1280 |
| 2 | 462680 |
| 3 | 90748696 |
| 4 | 16644595392 |
| 5 | 2840332868960 |
| 6 | 467693538063508 |
| 7 | 74936429415811576 |
| 8 | 11771832152564634464 |
| 9 | 1821445245786662249776 |
| 10 | 278444152926792624952684 |
| 11 | 42152783102393213438270928 |
[1280,462680,90748696,16644595392,2840332868960, 467693538063508,74936429415811576, 11771832152564634464,1821445245786662249776, 278444152926792624952684, 42152783102393213438270928] |