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 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 6 |
| 10 | 1 |
| 11 | 1 |
| 12 | 4 |
| 13 | 15 |
| 14 | 24 |
| 15 | 1 |
| 16 | 1 |
| 17 | 5 |
| 18 | 28 |
| 19 | 105 |
| 20 | 116 |
| 21 | 1 |
| 22 | 1 |
| 23 | 6 |
| 24 | 45 |
| 25 | 280 |
| 26 | 929 |
| 27 | 648 |
| 28 | 1 |
| 29 | 1 |
| 30 | 7 |
| 31 | 66 |
| 32 | 585 |
| 33 | 3600 |
| 34 | 9851 |
| 35 | 4088 |
| 36 | 1 |
| 37 | 1 |
| 38 | 8 |
| 39 | 91 |
| 40 | 1056 |
| 41 | 9865 |
| 42 | 56240 |
| 43 | 121071 |
| 44 | 28640 |
| 45 | 1 |
[1,1,1,1,2,1,1,3,6,1,1,4,15,24,1,1,5,28,105,116,1, 1,6,45,280,929,648,1,1,7,66,585,3600,9851,4088,1, 1,8,91,1056,9865,56240,121071,28640,1] |