The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 4 |
| 3 | 0 |
| 4 | 28 |
| 5 | 40 |
| 6 | 4 |
| 7 | 224 |
| 8 | 412 |
| 9 | 552 |
| 10 | 292 |
| 11 | 2048 |
| 12 | 2044 |
| 13 | 10504 |
| 14 | 196 |
| 15 | 64928 |
| 16 | 99612 |
| 17 | 221352 |
| 18 | 351268 |
| 19 | 269056 |
| 20 | 243452 |
| 21 | 3422472 |
| 22 | 7565508 |
| 23 | 12742048 |
| 24 | 19969820 |
| 25 | 2911912 |
| 26 | 119207972 |
| 27 | 146437888 |
| 28 | 68717308 |
| 29 | 595872008 |
| 30 | 375521476 |
| 31 | 2354183584 |
| 32 | 1246396188 |
| 33 | 8589984424 |
[1,0,4,0,28,40,4,224,412,552,292,2048,2044,10504, 196,64928,99612,221352,351268,269056,243452, 3422472,7565508,12742048,19969820,2911912, 119207972,146437888,68717308,595872008,375521476, 2354183584,1246396188,8589984424] |