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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 114244 |
| 3 | 50999956 |
| 4 | 22767656980 |
| 5 | 10164078082036 |
| 6 | 4537511642094436 |
| 7 | 2025664524518719732 |
| 8 | 904309916809657591444 |
| 9 | 403707729455406641892052 |
| 10 | 180225747607432250658675940 |
| 11 | 80457513519867024627155058004 |
[256,114244,50999956,22767656980,10164078082036, 4537511642094436,2025664524518719732, 904309916809657591444,403707729455406641892052, 180225747607432250658675940, 80457513519867024627155058004] |