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| n | a(n) |
|---|---|
| 1 | 1342 |
| 2 | 6164 |
| 3 | 35486 |
| 4 | 188690 |
| 5 | 984416 |
| 6 | 5217924 |
| 7 | 27565694 |
| 8 | 145417138 |
| 9 | 769096470 |
| 10 | 4065302050 |
| 11 | 21466258282 |
| 12 | 113390920454 |
| 13 | 599189708954 |
| 14 | 3165902490958 |
| 15 | 16725123385686 |
| 16 | 88359158741700 |
| 17 | 466828724130764 |
| 18 | 2466405305350896 |
[1342,6164,35486,188690,984416,5217924,27565694, 145417138,769096470,4065302050,21466258282, 113390920454,599189708954,3165902490958, 16725123385686,88359158741700,466828724130764, 2466405305350896] |