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 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 2 |
| 6 | 0 |
| 7 | 3 |
| 8 | 2 |
| 9 | 6 |
| 10 | 0 |
| 11 | 4 |
| 12 | 3 |
| 13 | 4 |
| 14 | 24 |
| 15 | 0 |
| 16 | 5 |
| 17 | 4 |
| 18 | 6 |
| 19 | 12 |
| 20 | 120 |
| 21 | 0 |
| 22 | 6 |
| 23 | 5 |
| 24 | 8 |
| 25 | 18 |
| 26 | 48 |
| 27 | 720 |
| 28 | 0 |
| 29 | 7 |
| 30 | 6 |
| 31 | 10 |
| 32 | 24 |
| 33 | 72 |
| 34 | 240 |
| 35 | 5040 |
| 36 | 0 |
| 37 | 8 |
| 38 | 7 |
| 39 | 12 |
| 40 | 30 |
| 41 | 96 |
| 42 | 360 |
| 43 | 1440 |
| 44 | 40320 |
| 45 | 0 |
| 46 | 9 |
| 47 | 8 |
| 48 | 14 |
| 49 | 36 |
| 50 | 120 |
| 51 | 480 |
| 52 | 2160 |
| 53 | 10080 |
| 54 | 362880 |
| 55 | 0 |
| 56 | 10 |
| 57 | 9 |
| 58 | 16 |
| 59 | 42 |
| 60 | 144 |
| 61 | 600 |
| 62 | 2880 |
| 63 | 15120 |
| 64 | 80640 |
| 65 | 3628800 |
[1,0,1,0,2,2,0,3,2,6,0,4,3,4,24,0,5,4,6,12,120,0, 6,5,8,18,48,720,0,7,6,10,24,72,240,5040,0,8,7,12, 30,96,360,1440,40320,0,9,8,14,36,120,480,2160, 10080,362880,0,10,9,16,42,144,600,2880,15120, 80640,3628800] |