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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 18 |
| 4 | 0 |
| 5 | 200 |
| 6 | 14 |
| 7 | 3364 |
| 8 | 0 |
| 9 | 0 |
| 10 | 88 |
| 11 | 9801 |
| 12 | 0 |
| 13 | 25281 |
| 14 | 116 |
| 15 | 1800 |
| 16 | 0 |
| 17 | 36992 |
| 18 | 0 |
| 19 | 4414201 |
| 20 | 0 |
| 21 | 196 |
| 22 | 2881 |
| 23 | 541696 |
| 24 | 0 |
| 25 | 0 |
| 26 | 711 |
| 27 | 0 |
| 28 | 0 |
| 29 | 98942809 |
| 30 | 209 |
| 31 | 1547536 |
| 32 | 0 |
| 33 | 19602 |
| 34 | 6901 |
| 35 | 814088 |
| 36 | 0 |
| 37 | 49042009 |
| 38 | 8473 |
| 39 | 1521 |
| 40 | 0 |
| 41 | 3150464641 |
| 42 | 377 |
| 43 | 245178368 |
| 44 | 0 |
| 45 | 0 |
| 46 | 6439 |
| 47 | 9265217536 |
| 48 | 0 |
| 49 | 0 |
[1,3,18,0,200,14,3364,0,0,88,9801,0,25281,116, 1800,0,36992,0,4414201,0,196,2881,541696,0,0,711, 0,0,98942809,209,1547536,0,19602,6901,814088,0, 49042009,8473,1521,0,3150464641,377,245178368,0,0, 6439,9265217536,0,0] |