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A187784 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 2 |
| 6 | 1 |
| 7 | 6 |
| 8 | 0 |
| 9 | 6 |
| 10 | 7 |
| 11 | 8 |
| 12 | 36 |
| 13 | 0 |
| 14 | 24 |
| 15 | 21 |
| 16 | 100 |
| 17 | 60 |
| 18 | 240 |
| 19 | 0 |
| 20 | 120 |
| 21 | 141 |
| 22 | 372 |
| 23 | 1170 |
| 24 | 480 |
| 25 | 1800 |
| 26 | 0 |
| 27 | 720 |
| 28 | 743 |
| 29 | 3584 |
| 30 | 5166 |
| 31 | 13440 |
| 32 | 4200 |
| 33 | 15120 |
| 34 | 0 |
| 35 | 5040 |
| 36 | 5699 |
| 37 | 22864 |
| 38 | 67368 |
| 39 | 68544 |
| 40 | 159600 |
| 41 | 40320 |
| 42 | 141120 |
| 43 | 0 |
| 44 | 40320 |
| 45 | 42241 |
| 46 | 225684 |
| 47 | 502200 |
| 48 | 1161216 |
| 49 | 922320 |
| 50 | 1995840 |
| 51 | 423360 |
| 52 | 1451520 |
| 53 | 0 |
| 54 | 362880 |
[1,0,1,1,0,2,1,6,0,6,7,8,36,0,24,21,100,60,240,0, 120,141,372,1170,480,1800,0,720,743,3584,5166, 13440,4200,15120,0,5040,5699,22864,67368,68544, 159600,40320,141120,0,40320,42241,225684,502200, 1161216,922320,1995840,423360,1451520,0,362880] |