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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 17 |
| 3 | 536 |
| 4 | 67073 |
| 5 | 33882272 |
| 6 | 68971196417 |
| 7 | 563671581328256 |
| 8 | 18454625673706995713 |
| 9 | 2418183685055827278828032 |
| 10 | 1267705002132225806674491867137 |
| 11 | 2658490852011206228820564373456050176 |
[2,17,536,67073,33882272,68971196417, 563671581328256,18454625673706995713, 2418183685055827278828032, 1267705002132225806674491867137, 2658490852011206228820564373456050176] |