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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 53 |
| 3 | 1979 |
| 4 | 67710 |
| 5 | 2217402 |
| 6 | 71862107 |
| 7 | 2319920239 |
| 8 | 74798189113 |
| 9 | 2410533664375 |
| 10 | 77672428997113 |
| 11 | 2502628646064793 |
| 12 | 80633851221600834 |
| 13 | 2597977434265900778 |
| 14 | 83705168795842477962 |
| 15 | 2696924567819650577863 |
| 16 | 86893079359980110185109 |
[0,53,1979,67710,2217402,71862107,2319920239, 74798189113,2410533664375,77672428997113, 2502628646064793,80633851221600834, 2597977434265900778,83705168795842477962, 2696924567819650577863,86893079359980110185109] |