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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 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 30 |
| 5 | 154 |
| 6 | 1429 |
| 7 | 11065 |
| 8 | 148817 |
| 9 | 1667697 |
| 10 | 29103894 |
| 11 | 396571224 |
| 12 | 10450152905 |
| 13 | 172658168937 |
[1,1,2,6,30,154,1429,11065,148817,1667697, 29103894,396571224,10450152905,172658168937] |