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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 34 |
| 3 | 115 |
| 4 | 265 |
| 5 | 692 |
| 6 | 2838 |
| 7 | 10526 |
| 8 | 36080 |
| 9 | 126064 |
| 10 | 451725 |
| 11 | 1619838 |
| 12 | 5790181 |
| 13 | 20746320 |
| 14 | 74543378 |
| 15 | 267962891 |
| 16 | 963182733 |
| 17 | 3463443128 |
| 18 | 12458351250 |
| 19 | 44819027270 |
| 20 | 161244816456 |
| 21 | 580146524964 |
| 22 | 2087429956513 |
| 23 | 7510987009954 |
[8,34,115,265,692,2838,10526,36080,126064,451725, 1619838,5790181,20746320,74543378,267962891, 963182733,3463443128,12458351250,44819027270, 161244816456,580146524964,2087429956513, 7510987009954] |