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 | 2178309 |
| 2 | 75025 |
| 3 | 10946 |
| 4 | 5702887 |
| 5 | 39088169 |
| 6 | 2504730781961 |
| 7 | 102334155 |
| 8 | 1548008755920 |
| 9 | 20365011074 |
| 10 | 2504730781961 |
| 11 | 4052739537881 |
| 12 | 10610209857723 |
| 13 | 308061521170129 |
| 14 | 1100087778366101931 |
| 15 | 160500643816367088 |