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| n | a(n) |
|---|---|
| 1 | 23912 |
| 2 | 48226 |
| 3 | 92286 |
| 4 | 167480 |
| 5 | 412860 |
| 6 | 1006754 |
| 7 | 2225410 |
| 8 | 4825526 |
| 9 | 10942334 |
| 10 | 25492388 |
| 11 | 58439276 |
| 12 | 131852146 |
| 13 | 298721620 |
| 14 | 682683776 |
| 15 | 1559009232 |
| 16 | 3545167022 |
| 17 | 8060117790 |
| 18 | 18362399186 |
| 19 | 41845749138 |
| 20 | 95271124676 |
| 21 | 216853176236 |
[23912,48226,92286,167480,412860,1006754,2225410, 4825526,10942334,25492388,58439276,131852146, 298721620,682683776,1559009232,3545167022, 8060117790,18362399186,41845749138,95271124676, 216853176236] |