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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 22 |
| 4 | 333 |
| 5 | 355 |
| 6 | 103993 |
| 7 | 104348 |
| 8 | 208341 |
| 9 | 312689 |
| 10 | 833719 |
| 11 | 1146408 |
| 12 | 4272943 |
| 13 | 5419351 |
| 14 | 80143857 |
| 15 | 165707065 |
| 16 | 245850922 |
| 17 | 411557987 |
| 18 | 1068966896 |
| 19 | 2549491779 |
| 20 | 6167950454 |
| 21 | 14885392687 |
| 22 | 21053343141 |
| 23 | 1783366216531 |
| 24 | 3587785776203 |
| 25 | 5371151992734 |
| 26 | 8958937768937 |
[0,1,3,22,333,355,103993,104348,208341,312689, 833719,1146408,4272943,5419351,80143857,165707065, 245850922,411557987,1068966896,2549491779, 6167950454,14885392687,21053343141,1783366216531, 3587785776203,5371151992734,8958937768937] |