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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 1 |
| 7 | 6 |
| 8 | 4 |
| 9 | 2 |
| 10 | 3 |
| 11 | 1 |
| 12 | 24 |
| 13 | 12 |
| 14 | 12 |
| 15 | 6 |
| 16 | 6 |
| 17 | 4 |
| 18 | 1 |
| 19 | 120 |
| 20 | 48 |
| 21 | 48 |
| 22 | 24 |
| 23 | 18 |
| 24 | 36 |
| 25 | 6 |
| 26 | 8 |
| 27 | 12 |
| 28 | 5 |
| 29 | 1 |
| 30 | 720 |
| 31 | 240 |
| 32 | 240 |
| 33 | 240 |
| 34 | 72 |
| 35 | 144 |
| 36 | 72 |
| 37 | 72 |
| 38 | 24 |
| 39 | 72 |
| 40 | 24 |
| 41 | 10 |
| 42 | 20 |
| 43 | 6 |
| 44 | 1 |
| 45 | 5040 |
| 46 | 1440 |
| 47 | 1440 |
| 48 | 1440 |
| 49 | 720 |
| 50 | 360 |
[1,1,1,2,2,1,6,4,2,3,1,24,12,12,6,6,4,1,120,48,48, 24,18,36,6,8,12,5,1,720,240,240,240,72,144,72,72, 24,72,24,10,20,6,1,5040,1440,1440,1440,720,360] |