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 | 6 |
| 3 | 12 |
| 4 | 26 |
| 5 | 58 |
| 6 | 108 |
| 7 | 202 |
| 8 | 394 |
| 9 | 468 |
| 10 | 848 |
| 11 | 2560 |
| 12 | 7740 |
| 13 | 11372 |
| 14 | 28356 |
| 15 | 20660 |
| 16 | 20032 |
| 17 | 68026 |
| 18 | 312678 |
| 19 | 662542 |
| 20 | 1536878 |
| 21 | 812306 |
| 22 | 461910 |
| 23 | 1466416 |
| 24 | 10325202 |