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 | 496 |
| 2 | 3321 |
| 3 | 13203 |
| 4 | 195625 |
| 5 | 780625 |
| 6 | 2883601 |
| 7 | 11527201 |
| 8 | 107186761 |
| 9 | 407879641 |
| 10 | 3487920481 |
| 11 | 39155632561 |
| 12 | 250123560121 |
| 13 | 47622568443841 |
| 14 | 95853663421561 |
| 15 | 322876778328721 |
| 16 | 403230060146161 |
| 17 | 3034217580863041 |
| 18 | 6333850463213521 |
| 19 | 13292221046055841 |
| 20 | 25335401515201441 |