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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 2 |
| 7 | 2 |
| 8 | 4 |
| 9 | 4 |
| 10 | 2 |
| 11 | 5 |
| 12 | 12 |
| 13 | 20 |
| 14 | 12 |
| 15 | 5 |
| 16 | 8 |
| 17 | 30 |
| 18 | 72 |
| 19 | 72 |
| 20 | 30 |
| 21 | 8 |
| 22 | 15 |
| 23 | 72 |
| 24 | 255 |
| 25 | 428 |
| 26 | 255 |
| 27 | 72 |
| 28 | 15 |
| 29 | 26 |
| 30 | 162 |
| 31 | 874 |
| 32 | 2294 |
| 33 | 2294 |
| 34 | 874 |
| 35 | 162 |
| 36 | 26 |
| 37 | 46 |
| 38 | 356 |
| 39 | 2903 |
| 40 | 11932 |
| 41 | 20104 |
| 42 | 11932 |
| 43 | 2903 |
| 44 | 356 |
| 45 | 46 |
| 46 | 80 |
| 47 | 766 |
| 48 | 9336 |
| 49 | 60304 |
| 50 | 166552 |
| 51 | 166552 |
| 52 | 60304 |
| 53 | 9336 |
| 54 | 766 |
| 55 | 80 |
| 56 | 139 |
| 57 | 1616 |
| 58 | 29578 |
[0,0,0,2,0,2,2,4,4,2,5,12,20,12,5,8,30,72,72,30,8, 15,72,255,428,255,72,15,26,162,874,2294,2294,874, 162,26,46,356,2903,11932,20104,11932,2903,356,46, 80,766,9336,60304,166552,166552,60304,9336,766,80, 139,1616,29578] |