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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 197 |
| 3 | 2252 |
| 4 | 25113 |
| 5 | 277608 |
| 6 | 3059149 |
| 7 | 33672484 |
| 8 | 370484705 |
| 9 | 4075681280 |
| 10 | 44833892181 |
| 11 | 493178406396 |
| 12 | 5424984839977 |
| 13 | 59674922718232 |
| 14 | 656424507814493 |
| 15 | 7220671017615188 |
| 16 | 79427386920390129 |
| 17 | 873701279030783664 |
[1,16,197,2252,25113,277608,3059149,33672484, 370484705,4075681280,44833892181,493178406396, 5424984839977,59674922718232,656424507814493, 7220671017615188,79427386920390129, 873701279030783664] |