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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 4 |
| 6 | 0 |
| 7 | 6 |
| 8 | 22 |
| 9 | 22 |
| 10 | 6 |
| 11 | 16 |
| 12 | 184 |
| 13 | 380 |
| 14 | 184 |
| 15 | 16 |
| 16 | 16 |
| 17 | 1222 |
| 18 | 8986 |
| 19 | 8986 |
| 20 | 1222 |
| 21 | 16 |
| 22 | 40 |
| 23 | 9918 |
| 24 | 138026 |
| 25 | 465938 |
| 26 | 138026 |
| 27 | 9918 |
| 28 | 40 |
| 29 | 280 |
| 30 | 73038 |
| 31 | 3581166 |
| 32 | 24893100 |
| 33 | 24893100 |
| 34 | 3581166 |
| 35 | 73038 |
| 36 | 280 |
| 37 | 768 |
| 38 | 571736 |
| 39 | 57340458 |
| 40 | 1351294947 |
| 41 | 2737507523 |
| 42 | 1351294947 |
[1,0,0,0,4,0,6,22,22,6,16,184,380,184,16,16,1222, 8986,8986,1222,16,40,9918,138026,465938,138026, 9918,40,280,73038,3581166,24893100,24893100, 3581166,73038,280,768,571736,57340458,1351294947, 2737507523,1351294947] |