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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 2 |
| 7 | 1 |
| 8 | 10 |
| 9 | 27 |
| 10 | 18 |
| 11 | 1 |
| 12 | 47 |
| 13 | 718 |
| 14 | 4416 |
| 15 | 10656 |
| 16 | 6912 |
| 17 | 1 |
| 18 | 246 |
| 19 | 20545 |
| 20 | 751800 |
| 21 | 12911500 |
| 22 | 100380000 |
| 23 | 304200000 |
| 24 | 216000000 |
| 25 | 1 |
| 26 | 1602 |
| 27 | 929171 |
| 28 | 260888070 |
| 29 | 39883405500 |
| 30 | 3492052425000 |
| 31 | 177328940580000 |
| 32 | 5153150631600000 |
| 33 | 82577533320000000 |
| 34 | 669410956800000000 |
| 35 | 2224399449600000000 |
| 36 | 1632586752000000000 |
| 37 | 1 |
| 38 | 11481 |
[1,1,1,1,1,3,2,1,10,27,18,1,47,718,4416,10656, 6912,1,246,20545,751800,12911500,100380000, 304200000,216000000,1,1602,929171,260888070, 39883405500,3492052425000,177328940580000, 5153150631600000,82577533320000000, 669410956800000000,2224399449600000000, 1632586752000000000,1,11481] |