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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 268 |
| 3 | 4328 |
| 4 | 68212 |
| 5 | 1094438 |
| 6 | 17553448 |
| 7 | 281649154 |
| 8 | 4519836612 |
| 9 | 72535767418 |
| 10 | 1164089433866 |
| 11 | 18681945395446 |
| 12 | 299818413509296 |
| 13 | 4811656811358998 |
| 14 | 77220219019275294 |
| 15 | 1239274253420409624 |
| 16 | 19888582401879509716 |
[16,268,4328,68212,1094438,17553448,281649154, 4519836612,72535767418,1164089433866, 18681945395446,299818413509296,4811656811358998, 77220219019275294,1239274253420409624, 19888582401879509716] |