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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 24 |
| 4 | 259 |
| 5 | 2614 |
| 6 | 26222 |
| 7 | 262220 |
| 8 | 2622178 |
| 9 | 26221610 |
| 10 | 262215860 |
| 11 | 2622158194 |
[0,1,24,259,2614,26222,262220,2622178,26221610, 262215860,2622158194] |