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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 2 |
| 7 | 0 |
| 8 | 0 |
| 9 | 2 |
| 10 | 9 |
| 11 | 4 |
| 12 | 4 |
| 13 | 4 |
| 14 | 4 |
| 15 | 25 |
| 16 | 30 |
| 17 | 20 |
| 18 | 20 |
| 19 | 30 |
| 20 | 145 |
| 21 | 120 |
| 22 | 120 |
| 23 | 120 |
| 24 | 120 |
| 25 | 625 |
| 26 | 650 |
| 27 | 600 |
| 28 | 600 |
| 29 | 650 |
| 30 | 3225 |
| 31 | 3100 |
| 32 | 3100 |
| 33 | 3100 |
| 34 | 3100 |
| 35 | 15625 |
| 36 | 15750 |
| 37 | 15500 |
| 38 | 15500 |
| 39 | 15750 |
| 40 | 78625 |
| 41 | 78000 |
| 42 | 78000 |
| 43 | 78000 |
| 44 | 78000 |
| 45 | 390625 |
| 46 | 391250 |
| 47 | 390000 |
| 48 | 390000 |
| 49 | 391250 |
| 50 | 1955625 |
| 51 | 1952500 |
| 52 | 1952500 |
| 53 | 1952500 |
| 54 | 1952500 |
[1,0,0,0,0,1,2,0,0,2,9,4,4,4,4,25,30,20,20,30,145, 120,120,120,120,625,650,600,600,650,3225,3100, 3100,3100,3100,15625,15750,15500,15500,15750, 78625,78000,78000,78000,78000,390625,391250, 390000,390000,391250,1955625,1952500,1952500, 1952500,1952500] |