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| n | a(n) |
|---|---|
| 1 | 212 |
| 2 | 4542 |
| 3 | 37204 |
| 4 | 183491 |
| 5 | 665256 |
| 6 | 1961608 |
| 7 | 4985336 |
| 8 | 11325573 |
| 9 | 23567212 |
| 10 | 45697586 |
| 11 | 83610924 |
| 12 | 145721095 |
| 13 | 243693152 |
| 14 | 393304188 |
| 15 | 615444016 |
| 16 | 937266185 |
| 17 | 1393499844 |
| 18 | 2027932966 |
| 19 | 2895077444 |
| 20 | 4062026571 |
| 21 | 5610515416 |
| 22 | 7639194608 |
| 23 | 10266128040 |
[212,4542,37204,183491,665256,1961608,4985336, 11325573,23567212,45697586,83610924,145721095, 243693152,393304188,615444016,937266185, 1393499844,2027932966,2895077444,4062026571, 5610515416,7639194608,10266128040] |