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 | 4 |
| 3 | 7 |
| 4 | 15 |
| 5 | 19 |
| 6 | 39 |
| 7 | 46 |
| 8 | 80 |
| 9 | 106 |
| 10 | 160 |
| 11 | 201 |
| 12 | 318 |
| 13 | 390 |
| 14 | 554 |
| 15 | 729 |
| 16 | 998 |
| 17 | 1262 |
| 18 | 1727 |
| 19 | 2168 |
| 20 | 2894 |
| 21 | 3670 |
| 22 | 4749 |
| 23 | 5963 |
| 24 | 7737 |
| 25 | 9635 |
| 26 | 12232 |
| 27 | 15257 |
| 28 | 19206 |
| 29 | 23727 |
| 30 | 29723 |
| 31 | 36509 |
| 32 | 45296 |
| 33 | 55512 |
| 34 | 68292 |
| 35 | 83298 |
| 36 | 102079 |
| 37 | 123805 |
| 38 | 150697 |
| 39 | 182254 |
| 40 | 220790 |
| 41 | 265766 |