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) |
|---|---|
| 3 | 2 |
| 4 | 15 |
| 5 | 52 |
| 6 | 129 |
| 7 | 266 |
| 8 | 487 |
| 9 | 820 |
| 10 | 1297 |
| 11 | 1954 |
| 12 | 2831 |
| 13 | 3972 |
| 14 | 5425 |
| 15 | 7242 |
| 16 | 9479 |
| 17 | 12196 |
| 18 | 15457 |
| 19 | 19330 |
| 20 | 23887 |
| 21 | 29204 |
| 22 | 35361 |
| 23 | 42442 |
| 24 | 50535 |
| 25 | 59732 |
| 26 | 70129 |
| 27 | 81826 |
| 28 | 94927 |
| 29 | 109540 |
| 30 | 125777 |
| 31 | 143754 |
| 32 | 163591 |
| 33 | 185412 |
| 34 | 209345 |
| 35 | 235522 |
| 36 | 264079 |
| 37 | 295156 |
| 38 | 328897 |
| 39 | 365450 |
| 40 | 404967 |
| 41 | 447604 |