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| n | a(n) |
|---|---|
| 2 | 5 |
| 3 | 109 |
| 4 | 163 |
| 5 | 751 |
| 6 | 37181 |
| 7 | 1220423 |
| 8 | 420001 |
| 9 | 59757913 |
| 10 | 16660807 |
| 11 | 199067023 |
| 12 | 766462903201 |
| 13 | 641418438961 |
| 14 | 610994816525833 |
| 15 | 834251799269401 |
| 16 | 46727045369489101 |
| 17 | 21346113465023 |
| 18 | 42439483778365061 |
| 19 | 17596652626197454349 |
| 20 | 1525870657210709129 |
[5,109,163,751,37181,1220423,420001,59757913, 16660807,199067023,766462903201,641418438961, 610994816525833,834251799269401,46727045369489101, 21346113465023,42439483778365061, 17596652626197454349,1525870657210709129] |