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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 1 |
| 7 | 1 |
| 8 | 10 |
| 9 | 18 |
| 10 | 1 |
| 11 | 1 |
| 12 | 46 |
| 13 | 78 |
| 14 | 108 |
| 15 | 1 |
| 16 | 1 |
| 17 | 166 |
| 18 | 486 |
| 19 | 636 |
| 20 | 780 |
| 21 | 1 |
| 22 | 1 |
| 23 | 856 |
| 24 | 3096 |
| 25 | 4896 |
| 26 | 5760 |
| 27 | 6600 |
| 28 | 1 |
| 29 | 1 |
| 30 | 3844 |
| 31 | 21204 |
| 32 | 40104 |
| 33 | 52200 |
| 34 | 58080 |
| 35 | 63840 |
| 36 | 1 |
| 37 | 1 |
| 38 | 21820 |
| 39 | 167868 |
| 40 | 363168 |
| 41 | 508320 |
| 42 | 602400 |
| 43 | 648480 |
| 44 | 693840 |
| 45 | 1 |
| 46 | 1 |
| 47 | 114076 |
| 48 | 1370268 |
| 49 | 3490848 |
| 50 | 5450400 |
| 51 | 6720480 |
[1,1,1,1,1,4,1,1,10,18,1,1,46,78,108,1,1,166,486, 636,780,1,1,856,3096,4896,5760,6600,1,1,3844, 21204,40104,52200,58080,63840,1,1,21820,167868, 363168,508320,602400,648480,693840,1,1,114076, 1370268,3490848,5450400,6720480] |