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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 7 |
| 7 | 30 |
| 8 | 12 |
| 9 | 12 |
| 10 | 17 |
| 11 | 210 |
| 12 | 20 |
| 13 | 2310 |
| 14 | 67 |
| 15 | 28 |
| 16 | 32 |
| 17 | 30030 |
| 18 | 33 |
| 19 | 510510 |
| 20 | 44 |
| 21 | 104 |
| 22 | 431 |
| 23 | 9699690 |
| 24 | 52 |
| 25 | 60 |
| 26 | 4633 |
| 27 | 54 |
| 28 | 148 |
| 29 | 223092870 |
| 30 | 71 |
| 31 | 6469693230 |
| 32 | 80 |
| 33 | 652 |
| 34 | 60077 |
| 35 | 192 |
| 36 | 84 |
| 37 | 200560490130 |
| 38 | 1021039 |
| 39 | 6956 |
| 40 | 108 |
| 41 | 7420738134810 |
| 42 | 229 |
| 43 | 304250263527210 |
| 44 | 884 |
| 45 | 114 |
| 46 | 19399403 |
| 47 | 13082761331670030 |
| 48 | 128 |
| 49 | 420 |
| 50 | 145 |
| 51 | 90124 |
| 52 | 9292 |
| 53 | 614889782588491410 |
| 54 | 135 |
| 55 | 1116 |
| 56 | 324 |
[0,0,1,2,4,6,7,30,12,12,17,210,20,2310,67,28,32, 30030,33,510510,44,104,431,9699690,52,60,4633,54, 148,223092870,71,6469693230,80,652,60077,192,84, 200560490130,1021039,6956,108,7420738134810,229, 304250263527210,884,114,19399403, 13082761331670030,128,420,145,90124,9292, 614889782588491410,135,1116,324] |