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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 3 |
| 6 | 0 |
| 7 | 1 |
| 8 | 7 |
| 9 | 12 |
| 10 | 0 |
| 11 | 1 |
| 12 | 15 |
| 13 | 50 |
| 14 | 60 |
| 15 | 0 |
| 16 | 1 |
| 17 | 31 |
| 18 | 180 |
| 19 | 390 |
| 20 | 360 |
| 21 | 0 |
| 22 | 1 |
| 23 | 63 |
| 24 | 602 |
| 25 | 2100 |
| 26 | 3360 |
| 27 | 2520 |
| 28 | 0 |
| 29 | 1 |
| 30 | 127 |
| 31 | 1932 |
| 32 | 10206 |
| 33 | 25200 |
| 34 | 31920 |
| 35 | 20160 |
| 36 | 0 |
| 37 | 1 |
| 38 | 255 |
| 39 | 6050 |
| 40 | 46620 |
| 41 | 166824 |
| 42 | 317520 |
| 43 | 332640 |
| 44 | 181440 |
| 45 | 0 |
| 46 | 1 |
| 47 | 511 |
| 48 | 18660 |
| 49 | 204630 |
| 50 | 1020600 |
| 51 | 2739240 |
| 52 | 4233600 |
| 53 | 3780000 |
| 54 | 1814400 |
| 55 | 0 |
| 56 | 1 |
| 57 | 1023 |
| 58 | 57002 |
| 59 | 874500 |
| 60 | 5921520 |
| 61 | 21538440 |
| 62 | 46070640 |
| 63 | 59875200 |
| 64 | 46569600 |
| 65 | 19958400 |
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