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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 81 |
| 4 | 1424 |
| 5 | 32152 |
| 6 | 1144937 |
| 7 | 53178768 |
| 8 | 3360267976 |
| 9 | 268737034880 |
| 10 | 26735641360265 |
| 11 | 3222856389284352 |
| 12 | 463078022054303432 |
| 13 | 78131995260953112576 |
| 14 | 15295767841794798044432 |
| 15 | 3438384401028669096232665 |
| 16 | 879589866427669147125523584 |
| 17 | 254053056142392070125392290952 |
[1,8,81,1424,32152,1144937,53178768,3360267976, 268737034880,26735641360265,3222856389284352, 463078022054303432,78131995260953112576, 15295767841794798044432,3438384401028669096232665, 879589866427669147125523584, 254053056142392070125392290952] |