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| n | a(n) |
|---|---|
| 1 | 30 |
| 2 | 56 |
| 3 | 176 |
| 4 | 490 |
| 5 | 792 |
| 6 | 1958 |
| 7 | 3010 |
| 8 | 6842 |
| 9 | 89134 |
| 10 | 124754 |
| 11 | 451276 |
| 12 | 614154 |
| 13 | 831820 |
| 14 | 2012558 |
| 15 | 8118264 |
| 16 | 13848650 |
| 17 | 133230930 |
| 18 | 214481126 |
| 19 | 271248950 |
| 20 | 541946240 |
| 21 | 851376628 |
| 22 | 1327710076 |
| 23 | 3163127352 |
| 24 | 4835271870 |
| 25 | 5964539504 |
| 26 | 7346629512 |
[30,56,176,490,792,1958,3010,6842,89134,124754, 451276,614154,831820,2012558,8118264,13848650, 133230930,214481126,271248950,541946240,851376628, 1327710076,3163127352,4835271870,5964539504, 7346629512] |