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| n | a(n) |
|---|---|
| 1 | 172 |
| 2 | 1945 |
| 3 | 22048 |
| 4 | 249921 |
| 5 | 2833397 |
| 6 | 32124018 |
| 7 | 364210219 |
| 8 | 4129278507 |
| 9 | 46816221866 |
| 10 | 530784935436 |
| 11 | 6017842440934 |
| 12 | 68228062145830 |
| 13 | 773544424316648 |
| 14 | 8770159340495832 |
| 15 | 99432808820402153 |
| 16 | 1127332250873994176 |
[172,1945,22048,249921,2833397,32124018,364210219, 4129278507,46816221866,530784935436,6017842440934, 68228062145830,773544424316648,8770159340495832, 99432808820402153,1127332250873994176] |