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| n | a(n) |
|---|---|
| 1 | 1246 |
| 2 | 1525 |
| 3 | 3424 |
| 4 | 7747 |
| 5 | 22203 |
| 6 | 56318 |
| 7 | 136414 |
| 8 | 396057 |
| 9 | 1018638 |
| 10 | 2491848 |
| 11 | 7256099 |
| 12 | 18740823 |
| 13 | 45930118 |
| 14 | 133764096 |
| 15 | 345973229 |
| 16 | 848474793 |
| 17 | 2470203352 |
| 18 | 6393928103 |
| 19 | 15686518177 |
| 20 | 45650583739 |
| 21 | 118239174725 |
| 22 | 290168205360 |
| 23 | 844090916262 |
[1246,1525,3424,7747,22203,56318,136414,396057, 1018638,2491848,7256099,18740823,45930118, 133764096,345973229,848474793,2470203352, 6393928103,15686518177,45650583739,118239174725, 290168205360,844090916262] |