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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 1573 |
| 4 | 235862938 |
| 5 | 37155328943771767 |
| 6 | 12458003910177278332403197817 |
| 7 | 15868284521418341362691384074620547198698934 |
| 8 | 126024243590219798408446284849897811759970155660106999854057796 |
| 9 | 9633603531065043175094488158875624821526224424118142906010095879389674957042528276201 |
[1,4,1573,235862938,37155328943771767, 12458003910177278332403197817, 15868284521418341362691384074620547198698934, 12602424359021979840844628484989781175997015566010\ 6999854057796, 96336035310650431750944881588756248215262244241181\ 42906010095879389674957042528276201] |