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 | 1 |
| 2 | 601 |
| 3 | 5584 |
| 4 | 25052 |
| 5 | 78557 |
| 6 | 198233 |
| 7 | 431928 |
| 8 | 846336 |
| 9 | 1530129 |
| 10 | 2597089 |
| 11 | 4189240 |
| 12 | 6479980 |
| 13 | 9677213 |
| 14 | 14026481 |
| 15 | 19814096 |
| 16 | 27370272 |
| 17 | 37072257 |
| 18 | 49347465 |
| 19 | 64676608 |
| 20 | 83596828 |
| 21 | 106704829 |
| 22 | 134660009 |
| 23 | 168187592 |
| 24 | 208081760 |
| 25 | 255208785 |
| 26 | 310510161 |