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| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 3272 |
| 3 | 91491 |
| 4 | 2144780 |
| 5 | 49084071 |
| 6 | 1073436321 |
| 7 | 22995344760 |
| 8 | 483176766982 |
| 9 | 10012943674291 |
| 10 | 205190835537996 |
| 11 | 4165999185526245 |
| 12 | 83946395869892249 |
| 13 | 1680542804576091072 |
| 14 | 33458893826064355756 |
| 15 | 662949906600663076935 |
[128,3272,91491,2144780,49084071,1073436321, 22995344760,483176766982,10012943674291, 205190835537996,4165999185526245, 83946395869892249,1680542804576091072, 33458893826064355756,662949906600663076935] |