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| n | a(n) |
|---|---|
| 0 | 8 |
| 1 | 4096 |
| 2 | 2097152 |
| 3 | 1073741824 |
| 4 | 549755813888 |
| 5 | 281474976710656 |
| 6 | 144115188075855872 |
| 7 | 73786976294838206464 |
| 8 | 37778931862957161709568 |
| 9 | 19342813113834066795298816 |
| 10 | 9903520314283042199192993792 |
| 11 | 5070602400912917605986812821504 |
[8,4096,2097152,1073741824,549755813888, 281474976710656,144115188075855872, 73786976294838206464,37778931862957161709568, 19342813113834066795298816, 9903520314283042199192993792, 5070602400912917605986812821504] |