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 | 5 |
| 3 | 10 |
| 4 | 17 |
| 5 | 28 |
| 6 | 47 |
| 7 | 88 |
| 8 | 149 |
| 9 | 238 |
| 10 | 647 |
| 11 | 1096 |
| 12 | 1595 |
| 13 | 2476 |
| 14 | 3467 |
| 15 | 9936 |
| 16 | 16885 |
| 17 | 25886 |
| 18 | 34935 |
| 19 | 44584 |
| 20 | 54533 |
| 21 | 115182 |
| 22 | 781831 |
| 23 | 1728500 |
| 24 | 61728549 |
| 25 | 127728598 |
| 26 | 194328647 |