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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 6 |
| 6 | 24 |
| 7 | 26 |
| 8 | 84 |
| 9 | 284 |
| 10 | 816 |
| 11 | 1424 |
| 12 | 1674 |
| 13 | 149274 |
| 14 | 278874 |
| 15 | 280726 |
| 16 | 2808716 |
| 17 | 2963576 |
| 18 | 8533626 |
| 19 | 23558584 |
| 20 | 27969274 |
| 21 | 28769826 |
| 22 | 29804174 |
| 23 | 47778874 |
| 24 | 88769826 |
| 25 | 282980174 |
| 26 | 297956374 |
| 27 | 884776174 |
| 28 | 934198626 |
| 29 | 1645509274 |
| 30 | 2660505174 |
| 31 | 2794331374 |
| 32 | 2829841374 |
[1,2,3,5,6,24,26,84,284,816,1424,1674,149274, 278874,280726,2808716,2963576,8533626,23558584, 27969274,28769826,29804174,47778874,88769826, 282980174,297956374,884776174,934198626, 1645509274,2660505174,2794331374,2829841374] |