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A012849 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 193 |
| 3 | 13319 |
| 4 | 1721281 |
| 5 | 357281351 |
| 6 | 108706678273 |
| 7 | 45591739883975 |
| 8 | 25211971076762753 |
| 9 | 17775279702237604231 |
| 10 | 15562493015528998511681 |
| 11 | 16565188691481564795512967 |
| 12 | 21067308092979783990029042241 |
[1,7,193,13319,1721281,357281351,108706678273, 45591739883975,25211971076762753, 17775279702237604231,15562493015528998511681, 16565188691481564795512967, 21067308092979783990029042241] |