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) |
|---|---|
| 0 | 0 |
| 1 | 672605 |
| 2 | 2384185791 |
| 3 | 519264540150 |
| 4 | 28953440450810 |
| 5 | 717964529118315 |
| 6 | 10397134518487185 |
| 7 | 102631380558013916 |
| 8 | 760331123057294820 |
| 9 | 4506897086994080745 |
| 10 | 22352635785031020755 |
| 11 | 95822037745015603890 |
| 12 | 363797880709171295166 |
| 13 | 1246350673076132966615 |
| 14 | 3910101151255427324805 |