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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 5 |
| 4 | 28 |
| 5 | 11 |
| 6 | 88 |
| 7 | 247 |
| 8 | 48 |
| 9 | 879 |
| 10 | 480 |
| 11 | 2655 |
| 12 | 7360 |
| 13 | 2495 |
| 14 | 21376 |
| 15 | 58751 |
| 16 | 19200 |
| 17 | 136959 |
| 18 | 310784 |
| 19 | 624127 |
| 20 | 1207296 |
| 21 | 2382847 |
| 22 | 4913152 |
| 23 | 9312255 |
| 24 | 22392832 |
| 25 | 58552319 |
| 26 | 42196992 |
| 27 | 259284991 |
| 28 | 43696128 |
| 29 | 892190719 |
| 30 | 442466304 |
| 31 | 3034677247 |
| 32 | 8192196608 |
| 33 | 1385627647 |
[1,2,6,5,28,11,88,247,48,879,480,2655,7360,2495, 21376,58751,19200,136959,310784,624127,1207296, 2382847,4913152,9312255,22392832,58552319, 42196992,259284991,43696128,892190719,442466304, 3034677247,8192196608,1385627647] |