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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 13 |
| 2 | 589 |
| 3 | 37501 |
| 4 | 2776861 |
| 5 | 224127793 |
| 6 | 19128964429 |
| 7 | 1697822272957 |
| 8 | 155124241235293 |
| 9 | 14493082279323913 |
| 10 | 1378280656022778289 |
| 11 | 132975844343348756257 |
| 12 | 12983655880217911846621 |
| 13 | 1280541892692200972993809 |
| 14 | 127387054518359023378891069 |
| 15 | 12766850683487700784950948541 |
| 16 | 1287829822333113383109436556893 |
[1,13,589,37501,2776861,224127793,19128964429, 1697822272957,155124241235293,14493082279323913, 1378280656022778289,132975844343348756257, 12983655880217911846621,1280541892692200972993809, 127387054518359023378891069, 12766850683487700784950948541, 1287829822333113383109436556893] |