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 | 1 |
| 1 | 3 |
| 2 | 91 |
| 3 | 325 |
| 4 | 2093 |
| 5 | 1001 |
| 6 | 12025 |
| 7 | 1045 |
| 8 | 4945 |
| 9 | 6391 |
| 10 | 189 |
| 11 | 455 |
| 12 | 245 |
| 13 | 11825 |
| 14 | 128843 |
| 15 | 368809 |
| 16 | 273 |
| 17 | 1295 |
| 18 | 14495 |
| 19 | 37961 |
| 20 | 252263 |
| 21 | 91375 |
| 22 | 595 |
| 23 | 13013 |
| 24 | 46189 |
| 25 | 104951 |
| 26 | 63875 |
| 27 | 136345 |
| 28 | 42237 |
| 29 | 22253 |
| 30 | 192647 |
| 31 | 18655 |
| 32 | 8225 |
| 33 | 194545 |
| 34 | 200629 |
| 35 | 192907 |
| 36 | 27625 |
| 37 | 1911 |
| 38 | 464783 |
| 39 | 27797 |