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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 16 |
| 5 | 1024 |
| 6 | 65536 |
| 7 | 16777216 |
| 8 | 4294967296 |
| 9 | 70368744177664 |
| 10 | 1152921504606846976 |
| 11 | 75557863725914323419136 |
| 12 | 4951760157141521099596496896 |
| 13 | 5192296858534827628530496329220096 |
| 14 | 5444517870735015415413993718908291383296 |
| 15 | 22835963083295358096932575511191922182123945984 |
[1,1,4,16,1024,65536,16777216,4294967296, 70368744177664,1152921504606846976, 75557863725914323419136, 4951760157141521099596496896, 5192296858534827628530496329220096, 5444517870735015415413993718908291383296, 22835963083295358096932575511191922182123945984] |