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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 149 |
| 3 | 2161 |
| 4 | 53089 |
| 5 | 1187803 |
| 6 | 62566171 |
| 7 | 126420629 |
| 8 | 34676275663 |
| 9 | 1327006348769 |
| 10 | 762860964413 |
| 11 | 35274884855393 |
| 12 | 1417459086247517 |
| 13 | 8539282786885727 |
| 14 | 994152675906323707 |
| 15 | 61839074498178353459 |
| 16 | 1984721470514398782313 |
| 17 | 27861319566938771335907 |
| 18 | 4133713434815611021027361 |
| 19 | 8286341865806624403560347 |
[1,7,149,2161,53089,1187803,62566171,126420629, 34676275663,1327006348769,762860964413, 35274884855393,1417459086247517,8539282786885727, 994152675906323707,61839074498178353459, 1984721470514398782313,27861319566938771335907, 4133713434815611021027361, 8286341865806624403560347] |