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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 28 |
| 2 | 496 |
| 3 | 8128 |
| 4 | 130816 |
| 5 | 2096128 |
| 6 | 33550336 |
| 7 | 536854528 |
| 8 | 8589869056 |
| 9 | 137438691328 |
| 10 | 2199022206976 |
| 11 | 35184367894528 |
| 12 | 562949936644096 |
| 13 | 9007199187632128 |
| 14 | 144115187807420416 |
| 15 | 2305843008139952128 |
[1,28,496,8128,130816,2096128,33550336,536854528, 8589869056,137438691328,2199022206976, 35184367894528,562949936644096,9007199187632128, 144115187807420416,2305843008139952128] |