The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 1 |
| 4 | 190 |
| 5 | 30 |
| 6 | 1 |
| 7 | 5320 |
| 8 | 1060 |
| 9 | 60 |
| 10 | 1 |
| 11 | 196840 |
| 12 | 45600 |
| 13 | 3400 |
| 14 | 100 |
| 15 | 1 |
| 16 | 9054640 |
| 17 | 2340040 |
| 18 | 208800 |
| 19 | 8300 |
| 20 | 150 |
| 21 | 1 |
| 22 | 498005200 |
| 23 | 140096880 |
| 24 | 14241640 |
| 25 | 690200 |
| 26 | 17150 |
| 27 | 210 |
| 28 | 1 |
| 29 | 31872332800 |
| 30 | 9604302400 |
| 31 | 1080045120 |
| 32 | 60485040 |
| 33 | 1856400 |
| 34 | 31640 |
| 35 | 280 |
| 36 | 1 |
| 37 | 2326680294400 |
[1,10,1,190,30,1,5320,1060,60,1,196840,45600,3400, 100,1,9054640,2340040,208800,8300,150,1,498005200, 140096880,14241640,690200,17150,210,1,31872332800, 9604302400,1080045120,60485040,1856400,31640,280, 1,2326680294400] |