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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 156 |
| 3 | 1986 |
| 4 | 28192 |
| 5 | 411825 |
| 6 | 6045460 |
| 7 | 89538170 |
| 8 | 1339793447 |
| 9 | 20215904926 |
| 10 | 306972320468 |
| 11 | 4684471214542 |
| 12 | 71777709052696 |
| 13 | 1103593885196101 |
| 14 | 17017816693554841 |
| 15 | 263086943851348011 |
| 16 | 4076187315351054647 |
[16,156,1986,28192,411825,6045460,89538170, 1339793447,20215904926,306972320468,4684471214542, 71777709052696,1103593885196101,17017816693554841, 263086943851348011,4076187315351054647] |