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 | 641 |
| 2 | 809 |
| 3 | 1105 |
| 4 | 2741 |
| 5 | 4045 |
| 6 | 5989 |
| 7 | 15805 |
| 8 | 23461 |
| 9 | 34829 |
| 10 | 92089 |
| 11 | 136721 |
| 12 | 202985 |
| 13 | 536729 |
| 14 | 796865 |
| 15 | 1183081 |
| 16 | 3128285 |
| 17 | 4644469 |
| 18 | 6895501 |
| 19 | 18232981 |
| 20 | 27069949 |
| 21 | 40189925 |
| 22 | 106269601 |
| 23 | 157775225 |
| 24 | 234244049 |
| 25 | 619384625 |
| 26 | 919581401 |
| 27 | 1365274369 |