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| n | a(n) |
|---|---|
| 1 | 448 |
| 2 | 908 |
| 3 | 1928 |
| 4 | 4008 |
| 5 | 10248 |
| 6 | 22904 |
| 7 | 49956 |
| 8 | 129296 |
| 9 | 300656 |
| 10 | 689192 |
| 11 | 1792064 |
| 12 | 4317696 |
| 13 | 10331264 |
| 14 | 26936064 |
| 15 | 66797136 |
| 16 | 165179552 |
| 17 | 431375936 |
| 18 | 1092206912 |
| 19 | 2762577872 |
| 20 | 7222018464 |
| 21 | 18536302352 |
| 22 | 47560605216 |
| 23 | 124411054752 |
| 24 | 322001817152 |
[448,908,1928,4008,10248,22904,49956,129296, 300656,689192,1792064,4317696,10331264,26936064, 66797136,165179552,431375936,1092206912, 2762577872,7222018464,18536302352,47560605216, 124411054752,322001817152] |