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| n | a(n) |
|---|---|
| 1 | 148 |
| 2 | 4102 |
| 3 | 45988 |
| 4 | 323394 |
| 5 | 1721356 |
| 6 | 7526024 |
| 7 | 28247478 |
| 8 | 93683295 |
| 9 | 280338123 |
| 10 | 769012348 |
| 11 | 1958026231 |
| 12 | 4673735444 |
| 13 | 10543684618 |
| 14 | 22631328296 |
| 15 | 46477583300 |
| 16 | 91756934105 |
| 17 | 174838318505 |
| 18 | 322648096420 |
| 19 | 578369211133 |
| 20 | 1009683032422 |
[148,4102,45988,323394,1721356,7526024,28247478, 93683295,280338123,769012348,1958026231, 4673735444,10543684618,22631328296,46477583300, 91756934105,174838318505,322648096420, 578369211133,1009683032422] |