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) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 5 |
| 4 | 50 |
| 5 | 634 |
| 6 | 9475 |
| 7 | 163843 |
| 8 | 3226213 |
| 9 | 71430404 |
| 10 | 1759835599 |
| 11 | 47821543220 |
| 12 | 1422411027534 |
| 13 | 46002758077823 |
| 14 | 1608256429511163 |
| 15 | 60463005173005523 |
| 16 | 2433267830904336072 |
| 17 | 104394054462487756061 |
| 18 | 4757234883237958801214 |
| 19 | 229506935072122869176226 |
[1,0,5,50,634,9475,163843,3226213,71430404, 1759835599,47821543220,1422411027534, 46002758077823,1608256429511163,60463005173005523, 2433267830904336072,104394054462487756061, 4757234883237958801214,229506935072122869176226] |