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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | 4 |
| 6 | 2 |
| 7 | 2 |
| 8 | 8 |
| 9 | 8 |
| 10 | 2 |
| 11 | 5 |
| 12 | 18 |
| 13 | 31 |
| 14 | 18 |
| 15 | 5 |
| 16 | 8 |
| 17 | 40 |
| 18 | 94 |
| 19 | 94 |
| 20 | 40 |
| 21 | 8 |
| 22 | 15 |
| 23 | 92 |
| 24 | 305 |
| 25 | 424 |
| 26 | 305 |
| 27 | 92 |
| 28 | 15 |
| 29 | 26 |
| 30 | 208 |
| 31 | 950 |
| 32 | 1854 |
| 33 | 1854 |
| 34 | 950 |
| 35 | 208 |
| 36 | 26 |
| 37 | 46 |
| 38 | 470 |
| 39 | 2901 |
| 40 | 7628 |
| 41 | 10677 |
| 42 | 7628 |
| 43 | 2901 |
| 44 | 470 |
| 45 | 46 |
| 46 | 80 |
| 47 | 1060 |
| 48 | 8728 |
| 49 | 30874 |
| 50 | 58852 |
| 51 | 58852 |
| 52 | 30874 |
| 53 | 8728 |
| 54 | 1060 |
| 55 | 80 |
| 56 | 139 |
| 57 | 2384 |
| 58 | 26068 |
[0,0,0,2,4,2,2,8,8,2,5,18,31,18,5,8,40,94,94,40,8, 15,92,305,424,305,92,15,26,208,950,1854,1854,950, 208,26,46,470,2901,7628,10677,7628,2901,470,46,80, 1060,8728,30874,58852,58852,30874,8728,1060,80, 139,2384,26068] |