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| n | a(n) |
|---|---|
| 1 | 49 |
| 2 | 475 |
| 3 | 3588 |
| 4 | 33265 |
| 5 | 292865 |
| 6 | 2600010 |
| 7 | 23355021 |
| 8 | 213885703 |
| 9 | 1961165204 |
| 10 | 18132546551 |
| 11 | 168328811813 |
| 12 | 1570773196000 |
| 13 | 14702977725167 |
| 14 | 138124769214915 |
| 15 | 1301216210855216 |
| 16 | 12291590847436569 |
| 17 | 116373737176266317 |
[49,475,3588,33265,292865,2600010,23355021, 213885703,1961165204,18132546551,168328811813, 1570773196000,14702977725167,138124769214915, 1301216210855216,12291590847436569, 116373737176266317] |