The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 58 |
| 5 | 3312 |
| 6 | 219528 |
| 7 | 17445312 |
| 8 | 1665090432 |
| 9 | 189515635200 |
| 10 | 25472408256000 |
| 11 | 4002577182720000 |
| 12 | 728259627506688000 |
| 13 | 152076300005855232000 |
| 14 | 36154290403284480000000 |
| 15 | 9714114050265240698880000 |
| 16 | 2930311008702414783774720000 |
| 17 | 986466808456816565267988480000 |
| 18 | 368586443487759607372452986880000 |
[0,0,0,1,58,3312,219528,17445312,1665090432, 189515635200,25472408256000,4002577182720000, 728259627506688000,152076300005855232000, 36154290403284480000000,9714114050265240698880000, 2930311008702414783774720000, 986466808456816565267988480000, 368586443487759607372452986880000] |