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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 8 |
| 4 | 17 |
| 5 | 7 |
| 6 | 208 |
| 7 | 30 |
| 8 | 0 |
| 9 | 0 |
| 10 | 8576 |
| 11 | 112 |
| 12 | 0 |
| 13 | 80 |
| 14 | 22864 |
| 15 | 36199 |
| 16 | 159681 |
| 17 | 155 |
| 18 | 0 |
| 19 | 116 |
| 20 | 40062976 |
| 21 | 83791 |
| 22 | 142928 |
| 23 | 255 |
| 24 | 26138902528 |
| 25 | 68 |
| 26 | 302656 |
| 27 | 362152 |
| 28 | 454885376 |
| 29 | 60 |
| 30 | 544999124224 |
| 31 | 374 |
| 32 | 0 |
| 33 | 226279 |
| 34 | 629152 |
| 35 | 399674 |
| 36 | 27234498115233 |
| 37 | 76 |
| 38 | 956704 |
| 39 | 956539 |
| 40 | 3361080344576 |
[0,0,8,17,7,208,30,0,0,8576,112,0,80,22864,36199, 159681,155,0,116,40062976,83791,142928,255, 26138902528,68,302656,362152,454885376,60, 544999124224,374,0,226279,629152,399674, 27234498115233,76,956704,956539,3361080344576] |