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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 6112 |
| 3 | 158981 |
| 4 | 4220392 |
| 5 | 112592256 |
| 6 | 3007468553 |
| 7 | 80358249724 |
| 8 | 2147311723128 |
| 9 | 57381098807117 |
| 10 | 1533363080745712 |
| 11 | 40975264290787104 |
| 12 | 1094961088264570145 |
| 13 | 29260089513854569828 |
| 14 | 781902543548899924344 |
| 15 | 20894385553758379097861 |
[256,6112,158981,4220392,112592256,3007468553, 80358249724,2147311723128,57381098807117, 1533363080745712,40975264290787104, 1094961088264570145,29260089513854569828, 781902543548899924344,20894385553758379097861] |