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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 10 |
| 4 | 26 |
| 5 | 62 |
| 6 | 133 |
| 7 | 260 |
| 8 | 471 |
| 9 | 802 |
| 10 | 1298 |
| 11 | 2014 |
| 12 | 3016 |
| 13 | 4382 |
| 14 | 6203 |
| 15 | 8584 |
| 16 | 11645 |
| 17 | 15522 |
| 18 | 20368 |
| 19 | 26354 |
| 20 | 33670 |
| 21 | 42526 |
| 22 | 53153 |
| 23 | 65804 |
| 24 | 80755 |
| 25 | 98306 |
| 26 | 118782 |
| 27 | 142534 |
| 28 | 169940 |
| 29 | 201406 |
| 30 | 237367 |
| 31 | 278288 |
| 32 | 324665 |
| 33 | 377026 |
| 34 | 435932 |
| 35 | 501978 |
| 36 | 575794 |
| 37 | 658046 |
| 38 | 749437 |
| 39 | 850708 |