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) |
|---|---|
| 1 | 2 |
| 2 | 276 |
| 3 | 2778 |
| 4 | 15040 |
| 5 | 52486 |
| 6 | 145482 |
| 7 | 336992 |
| 8 | 695778 |
| 9 | 1309052 |
| 10 | 2298830 |
| 11 | 3808116 |
| 12 | 6034796 |
| 13 | 9189086 |
| 14 | 13554364 |
| 15 | 19435742 |
| 16 | 27212132 |
| 17 | 37285690 |
| 18 | 50170962 |
| 19 | 66371288 |
| 20 | 86532042 |
| 21 | 111309444 |
| 22 | 141482278 |
| 23 | 177842124 |
| 24 | 221369312 |
| 25 | 272987306 |
| 26 | 333851184 |