This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 625 |
| 3 | 6561 |
| 4 | 117649 |
| 5 | 4100625 |
| 6 | 31250000 |
| 7 | 37515625 |
| 8 | 73530625 |
| 9 | 771895089 |
| 10 | 1000000000 |
| 11 | 2147483648 |
| 12 | 6442450944 |
| 13 | 10737418240 |
| 14 | 15032385536 |
| 15 | 23622320128 |
| 16 | 25937424601 |
| 17 | 27917287424 |
| 18 | 32212254720 |
| 19 | 33059881728 |
| 20 | 36507222016 |
| 21 | 40802189312 |
| 22 | 45097156608 |
| 23 | 49392123904 |