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A212209 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 0 |
| 5 | 0 |
| 6 | 3 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 4 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 24 |
| 15 | 5 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 72 |
| 20 | 120 |
| 21 | 6 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 168 |
| 26 | 6720 |
| 27 | 360 |
| 28 | 7 |
| 29 | 0 |
| 30 | 0 |
| 31 | 0 |
| 32 | 360 |
| 33 | 935040 |
| 34 | 126360 |
| 35 | 840 |
| 36 | 8 |
| 37 | 0 |
| 38 | 0 |
| 39 | 0 |
| 40 | 744 |
| 41 | 325061760 |
| 42 | 265035240 |
| 43 | 1128960 |
| 44 | 1680 |
| 45 | 9 |
| 46 | 0 |
| 47 | 0 |
| 48 | 0 |
| 49 | 1512 |
| 50 | 283192323840 |
| 51 | 3322711053720 |
| 52 | 17160407040 |
| 53 | 6510000 |
| 54 | 3024 |
| 55 | 10 |
[1,0,2,0,0,3,0,0,0,4,0,0,0,24,5,0,0,0,72,120,6,0, 0,0,168,6720,360,7,0,0,0,360,935040,126360,840,8, 0,0,0,744,325061760,265035240,1128960,1680,9,0,0, 0,1512,283192323840,3322711053720,17160407040, 6510000,3024,10] |