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| n | a(n) |
|---|---|
| 1 | 99 |
| 2 | 269 |
| 3 | 805 |
| 4 | 1819 |
| 5 | 4383 |
| 6 | 12412 |
| 7 | 32525 |
| 8 | 82616 |
| 9 | 222474 |
| 10 | 598599 |
| 11 | 1577548 |
| 12 | 4210492 |
| 13 | 11316402 |
| 14 | 30215951 |
| 15 | 80758149 |
| 16 | 216596656 |
| 17 | 580222858 |
| 18 | 1553421000 |
| 19 | 4163544562 |
| 20 | 11159591352 |
| 21 | 29901049773 |
| 22 | 80136519668 |
| 23 | 214797758849 |
| 24 | 575682349029 |
[99,269,805,1819,4383,12412,32525,82616,222474, 598599,1577548,4210492,11316402,30215951,80758149, 216596656,580222858,1553421000,4163544562, 11159591352,29901049773,80136519668,214797758849, 575682349029] |