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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 15625 |
| 3 | 262144 |
| 4 | 1000000 |
| 5 | 4826809 |
| 6 | 24137569 |
| 7 | 34012224 |
| 8 | 64000000 |
| 9 | 244140625 |
| 10 | 308915776 |
| 11 | 594823321 |
| 12 | 1073741824 |
| 13 | 1544804416 |
| 14 | 2565726409 |
| 15 | 4096000000 |
| 16 | 4750104241 |
| 17 | 8303765625 |
| 18 | 15625000000 |
| 19 | 19770609664 |
| 20 | 22164361129 |
| 21 | 38068692544 |
[64,15625,262144,1000000,4826809,24137569, 34012224,64000000,244140625,308915776,594823321, 1073741824,1544804416,2565726409,4096000000, 4750104241,8303765625,15625000000,19770609664, 22164361129,38068692544] |