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| n | a(n) |
|---|---|
| 1 | 21 |
| 2 | 45 |
| 3 | 432 |
| 4 | 740 |
| 5 | 1728 |
| 6 | 3456 |
| 7 | 3888 |
| 8 | 5616 |
| 9 | 12096 |
| 10 | 23760 |
| 11 | 46656 |
| 12 | 52164 |
| 13 | 131328 |
| 14 | 152064 |
| 15 | 186624 |
| 16 | 195656 |
| 17 | 233280 |
| 18 | 311472 |
| 19 | 606528 |
| 20 | 618192 |
| 21 | 746496 |
| 22 | 926208 |
| 23 | 933120 |
| 24 | 979776 |
| 25 | 1273536 |
| 26 | 1403136 |
| 27 | 2985984 |
| 28 | 3221456 |
| 29 | 3732480 |
| 30 | 5178816 |
| 31 | 5412096 |
| 32 | 5971968 |
| 33 | 9704448 |
| 34 | 13651200 |
[21,45,432,740,1728,3456,3888,5616,12096,23760, 46656,52164,131328,152064,186624,195656,233280, 311472,606528,618192,746496,926208,933120,979776, 1273536,1403136,2985984,3221456,3732480,5178816, 5412096,5971968,9704448,13651200] |