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) |
|---|---|
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 5 |
| 8 | 0 |
| 9 | 18 |
| 10 | 0 |
| 11 | 57 |
| 12 | 0 |
| 13 | 183 |
| 14 | 0 |
| 15 | 604 |
| 16 | 0 |
| 17 | 2047 |
| 18 | 0 |
| 19 | 7145 |
| 20 | 0 |
| 21 | 25471 |
| 22 | 0 |
| 23 | 92193 |
[0,1,0,5,0,18,0,57,0,183,0,604,0,2047,0,7145,0, 25471,0,92193] |