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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 105 |
| 3 | 123 |
| 4 | 544 |
| 5 | 1926 |
| 6 | 5101 |
| 7 | 15421 |
| 8 | 48922 |
| 9 | 143214 |
| 10 | 444335 |
| 11 | 1400682 |
| 12 | 4214900 |
| 13 | 12959240 |
| 14 | 40298167 |
| 15 | 122726980 |
| 16 | 376705486 |
| 17 | 1164728930 |
| 18 | 3566783028 |
| 19 | 10948433283 |
| 20 | 33744267108 |
| 21 | 103560501696 |
| 22 | 317995281524 |
| 23 | 978582172848 |
| 24 | 3005885925021 |
[13,105,123,544,1926,5101,15421,48922,143214, 444335,1400682,4214900,12959240,40298167, 122726980,376705486,1164728930,3566783028, 10948433283,33744267108,103560501696,317995281524, 978582172848,3005885925021] |