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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 34 |
| 3 | 49 |
| 4 | 168 |
| 5 | 481 |
| 6 | 1031 |
| 7 | 2781 |
| 8 | 7666 |
| 9 | 19581 |
| 10 | 50767 |
| 11 | 133067 |
| 12 | 347285 |
| 13 | 908050 |
| 14 | 2376097 |
| 15 | 6205040 |
| 16 | 16210548 |
| 17 | 42388933 |
| 18 | 110845205 |
| 19 | 289736000 |
| 20 | 757344081 |
| 21 | 1979883152 |
| 22 | 5176072691 |
| 23 | 13531879986 |
| 24 | 35376145849 |
| 25 | 92481993251 |
| 26 | 241773334844 |
[8,34,49,168,481,1031,2781,7666,19581,50767, 133067,347285,908050,2376097,6205040,16210548, 42388933,110845205,289736000,757344081,1979883152, 5176072691,13531879986,35376145849,92481993251, 241773334844] |