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 | 1 |
| 1 | 4 |
| 2 | 32 |
| 3 | 168 |
| 4 | 748 |
| 5 | 3188 |
| 6 | 13448 |
| 7 | 53828 |
| 8 | 218500 |
| 9 | 878728 |
| 10 | 3524900 |
| 11 | 14123944 |
| 12 | 56542440 |
| 13 | 226252968 |
| 14 | 905296728 |
| 15 | 3621679672 |
[1,4,32,168,748,3188,13448,53828,218500,878728, 3524900,14123944,56542440,226252968,905296728, 3621679672] |