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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 815730721 |
| 2 | 152587890625 |
| 3 | 3512479453921 |
| 4 | 33232930569601 |
| 5 | 191707312997281 |
| 6 | 806460091894081 |
| 7 | 2724905250390625 |
| 8 | 7837433594376961 |
| 9 | 19925626416901921 |
| 10 | 45949729863572161 |
| 11 | 97906861202319841 |
[1,815730721,152587890625,3512479453921, 33232930569601,191707312997281,806460091894081, 2724905250390625,7837433594376961, 19925626416901921,45949729863572161, 97906861202319841] |