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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 104 |
| 3 | 546 |
| 4 | 2274 |
| 5 | 7994 |
| 6 | 24647 |
| 7 | 68392 |
| 8 | 173978 |
| 9 | 411332 |
| 10 | 913445 |
| 11 | 1921218 |
| 12 | 3852849 |
| 13 | 7407596 |
| 14 | 13716314 |
| 15 | 24553984 |
| 16 | 42632448 |
| 17 | 71994624 |
| 18 | 118534456 |
| 19 | 190669584 |
| 20 | 300196001 |
| 21 | 463355582 |
| 22 | 702148097 |
| 23 | 1045918928 |
| 24 | 1533251980 |
[1,14,104,546,2274,7994,24647,68392,173978,411332, 913445,1921218,3852849,7407596,13716314,24553984, 42632448,71994624,118534456,190669584,300196001, 463355582,702148097,1045918928,1533251980] |