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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 24 |
| 4 | 89 |
| 5 | 389 |
| 6 | 1570 |
| 7 | 6413 |
| 8 | 25744 |
| 9 | 103229 |
| 10 | 412081 |
| 11 | 1643706 |
| 12 | 6548560 |
| 13 | 26080372 |
| 14 | 103836793 |
| 15 | 413362985 |
| 16 | 1645415613 |
| 17 | 6549395074 |
| 18 | 26068520679 |
| 19 | 103759005831 |
| 20 | 412983036406 |
| 21 | 1643754108417 |
| 22 | 6542452940294 |
| 23 | 26040170803581 |
| 24 | 103644625748031 |
[1,5,24,89,389,1570,6413,25744,103229,412081, 1643706,6548560,26080372,103836793,413362985, 1645415613,6549395074,26068520679,103759005831, 412983036406,1643754108417,6542452940294, 26040170803581,103644625748031] |