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| n | a(n) |
|---|---|
| 1 | 1555 |
| 2 | 775213 |
| 3 | 262875231 |
| 4 | 74760946845 |
| 5 | 19598169849191 |
| 6 | 4960640065587845 |
| 7 | 1235565258789975999 |
| 8 | 305000184885228282189 |
| 9 | 74877571723905905928727 |
| 10 | 18318283867677317849128917 |
| 11 | 4471265968261439331036589871 |
[1555,775213,262875231,74760946845,19598169849191, 4960640065587845,1235565258789975999, 305000184885228282189,74877571723905905928727, 18318283867677317849128917, 4471265968261439331036589871] |