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 | 2 |
| 3 | 11 |
| 4 | 19 |
| 5 | 36 |
| 6 | 45 |
| 7 | 152 |
| 8 | 377 |
| 9 | 418 |
| 10 | 3794 |
| 11 | 4423 |
| 12 | 14495 |
| 13 | 31148 |
| 14 | 42224 |
| 15 | 49279 |
| 16 | 120447 |
| 17 | 1018376 |
| 18 | 2605261 |
| 19 | 17484247 |
| 20 | 368070997 |
| 21 | 850833878 |
| 22 | 1121254607 |
| 23 | 3440701629 |
| 24 | 7863041200 |