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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 41 |
| 3 | 189 |
| 4 | 793 |
| 5 | 3249 |
| 6 | 12917 |
| 7 | 52577 |
| 8 | 208301 |
| 9 | 832101 |
| 10 | 3334181 |
| 11 | 13334013 |
| 12 | 53367501 |
| 13 | 213442441 |
| 14 | 853655053 |
| 15 | 3415005917 |
[1,8,41,189,793,3249,12917,52577,208301,832101, 3334181,13334013,53367501,213442441,853655053, 3415005917] |