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| n | a(n) |
|---|---|
| 1 | 234848 |
| 2 | 682276 |
| 3 | 956736 |
| 4 | 2414916 |
| 5 | 3826716 |
| 6 | 8773444 |
| 7 | 15444224 |
| 8 | 34739236 |
| 9 | 68785192 |
| 10 | 159314884 |
| 11 | 350720544 |
| 12 | 846460836 |
| 13 | 2012239968 |
| 14 | 5024257924 |
| 15 | 12517516032 |
| 16 | 31952992516 |
| 17 | 81660135036 |
| 18 | 211086951364 |
| 19 | 546410190784 |
| 20 | 1421755755876 |
[234848,682276,956736,2414916,3826716,8773444, 15444224,34739236,68785192,159314884,350720544, 846460836,2012239968,5024257924,12517516032, 31952992516,81660135036,211086951364,546410190784, 1421755755876] |