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| n | a(n) |
|---|---|
| 1 | 56 |
| 2 | 469 |
| 3 | 4415 |
| 4 | 74547 |
| 5 | 904715 |
| 6 | 10478150 |
| 7 | 115306521 |
| 8 | 1239077832 |
| 9 | 12886510259 |
| 10 | 128928018858 |
| 11 | 1239783637603 |
| 12 | 11475898062036 |
| 13 | 102697376249179 |
| 14 | 891984543522454 |
| 15 | 7542567812340359 |
| 16 | 62214784451259205 |
| 17 | 501183890732128843 |
[56,469,4415,74547,904715,10478150,115306521, 1239077832,12886510259,128928018858,1239783637603, 11475898062036,102697376249179,891984543522454, 7542567812340359,62214784451259205, 501183890732128843] |