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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 44 |
| 2 | 1892 |
| 3 | 81356 |
| 4 | 3498308 |
| 5 | 150427244 |
| 6 | 6468371492 |
| 7 | 278139974156 |
| 8 | 11960018887762 |
| 9 | 514280812133088 |
| 10 | 22114074919974576 |
| 11 | 950905221483733824 |
| 12 | 40888924520568117840 |
| 13 | 1758223754245434293664 |
| 14 | 75603621426576899368944 |
[1,44,1892,81356,3498308,150427244,6468371492, 278139974156,11960018887762,514280812133088, 22114074919974576,950905221483733824, 40888924520568117840,1758223754245434293664, 75603621426576899368944] |