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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 676 |
| 3 | 1356 |
| 4 | 19990 |
| 5 | 92041 |
| 6 | 764836 |
| 7 | 4373134 |
| 8 | 29088446 |
| 9 | 172527610 |
| 10 | 1072084446 |
| 11 | 6410227358 |
| 12 | 38947762444 |
| 13 | 233409450993 |
| 14 | 1407074717250 |
| 15 | 8438849710124 |
| 16 | 50726297744076 |
| 17 | 304311761563422 |
| 18 | 1827223612898464 |
| 19 | 10962789965155112 |
[16,676,1356,19990,92041,764836,4373134,29088446, 172527610,1072084446,6410227358,38947762444, 233409450993,1407074717250,8438849710124, 50726297744076,304311761563422,1827223612898464, 10962789965155112] |