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 | 1 |
| 2 | 15 |
| 3 | 303 |
| 4 | 5051 |
| 5 | 123235 |
| 6 | 2214223 |
| 7 | 35452011 |
| 8 | 1034052155 |
| 9 | 15005255143 |
| 10 | 302130544531 |
| 11 | 5034313401115 |
| 12 | 123013240420103 |
| 13 | 2210234251121451 |
| 14 | 35344212440150035 |
| 15 | 1032151423443021023 |
| 16 | 14535045221530334411 |
| 17 | 301223205551110014555 |