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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 1 |
| 3 | 16 |
| 4 | 4 |
| 5 | 64 |
| 6 | 25 |
| 7 | 368 |
| 8 | 201 |
| 9 | 2545 |
| 10 | 1855 |
| 11 | 21082 |
| 12 | 17922 |
| 13 | 193932 |
| 14 | 178310 |
| 15 | 1883444 |
| 16 | 1798105 |
| 17 | 18748029 |
| 18 | 18258149 |
| 19 | 188640260 |
| 20 | 186011969 |
| 21 | 1906833092 |
| 22 | 1898120576 |
| 23 | 19312818727 |
| 24 | 19383847701 |
| 25 | 195770541009 |
| 26 | 198022534325 |
| 27 | 1985235845500 |
[16,1,16,4,64,25,368,201,2545,1855,21082,17922, 193932,178310,1883444,1798105,18748029,18258149, 188640260,186011969,1906833092,1898120576, 19312818727,19383847701,195770541009,198022534325, 1985235845500] |