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 | 33328 |
| 3 | 32524281 |
| 4 | 4312863360 |
| 5 | 191243490675 |
| 6 | 4239501280272 |
| 7 | 58236754527707 |
| 8 | 563536359633920 |
| 9 | 4172726943804861 |
| 10 | 25016666666700400 |
| 11 | 126431377927701253 |
| 12 | 554909560378102656 |
| 13 | 2163457078062360639 |
| 14 | 7625429483925609552 |
| 15 | 24638829565429941975 |