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| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 16384 |
| 3 | 371641 |
| 4 | 20544154 |
| 5 | 1127318294 |
| 6 | 47325959200 |
| 7 | 2307086087740 |
| 8 | 111642244016936 |
| 9 | 5198138560322655 |
| 10 | 247778079713183493 |
| 11 | 11784953664767609408 |
| 12 | 557503350633218495686 |
| 13 | 26469014360403565983659 |
[128,16384,371641,20544154,1127318294,47325959200, 2307086087740,111642244016936,5198138560322655, 247778079713183493,11784953664767609408, 557503350633218495686,26469014360403565983659] |