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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 9 |
| 4 | 64 |
| 5 | 625 |
| 6 | 7632 |
| 7 | 115633 |
| 8 | 2060864 |
| 9 | 42272577 |
| 10 | 981100000 |
| 11 | 25420901209 |
| 12 | 727392785472 |
| 13 | 22781551770289 |
| 14 | 775174385740496 |
| 15 | 28475611427390625 |
| 16 | 1123174379270470528 |
| 17 | 47345176946662808833 |
| 18 | 2124056646149570472384 |
| 19 | 101049649535116764217513 |
| 20 | 5081280208216339430000000 |
| 21 | 269289663191356712678537841 |
| 22 | 15001629187601225176466619952 |
| 23 | 876397229390129697388339920049 |
[1,2,9,64,625,7632,115633,2060864,42272577, 981100000,25420901209,727392785472,22781551770289, 775174385740496,28475611427390625, 1123174379270470528,47345176946662808833, 2124056646149570472384,101049649535116764217513, 5081280208216339430000000, 269289663191356712678537841, 15001629187601225176466619952, 876397229390129697388339920049] |