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 | 2 |
| 3 | 16 |
| 4 | 137 |
| 5 | 1254 |
| 6 | 12597 |
| 7 | 133518 |
| 8 | 1464725 |
| 9 | 16373700 |
| 10 | 185086459 |
| 11 | 2106417804 |
| 12 | 24081813881 |
| 13 | 276231542440 |
| 14 | 3176840637522 |
[0,0,2,16,137,1254,12597,133518,1464725,16373700, 185086459,2106417804,24081813881,276231542440, 3176840637522] |