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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 257 |
| 5 | 1025 |
| 6 | 535538 |
| 7 | 4799354 |
| 8 | 4338079554 |
| 9 | 69107159370 |
| 10 | 96470431101379 |
| 11 | 2401809362313955 |
| 12 | 4798267740520031875 |
| 13 | 172076350440523281571 |
| 14 | 466164803742660494432996 |
| 15 | 22761346686115003736962100 |
| 16 | 80340572151131167125889902852 |
[1,0,1,1,257,1025,535538,4799354,4338079554, 69107159370,96470431101379,2401809362313955, 4798267740520031875,172076350440523281571, 466164803742660494432996, 22761346686115003736962100, 80340572151131167125889902852] |