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 | 5 |
| 1 | 89 |
| 2 | 1597 |
| 3 | 28657 |
| 4 | 514229 |
| 5 | 9227465 |
| 6 | 165580141 |
| 7 | 2971215073 |
| 8 | 53316291173 |
| 9 | 956722026041 |
| 10 | 17167680177565 |
| 11 | 308061521170129 |
| 12 | 5527939700884757 |
| 13 | 99194853094755497 |
| 14 | 1779979416004714189 |
| 15 | 31940434634990099905 |
| 16 | 573147844013817084101 |
| 17 | 10284720757613717413913 |