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 | 23 |
| 2 | 85 |
| 3 | 230 |
| 4 | 535 |
| 5 | 1124 |
| 6 | 2197 |
| 7 | 4071 |
| 8 | 7228 |
| 9 | 12391 |
| 10 | 20631 |
| 11 | 33506 |
| 12 | 53252 |
| 13 | 83047 |
| 14 | 127358 |
| 15 | 192400 |
| 16 | 286751 |
| 17 | 422150 |
| 18 | 614551 |
| 19 | 885479 |
| 20 | 1263794 |
| 21 | 1787960 |
| 22 | 2508951 |
| 23 | 3493969 |
| 24 | 4831163 |
| 25 | 6635623 |
| 26 | 9056943 |
| 27 | 12288743 |
| 28 | 16580630 |
| 29 | 22253151 |
| 30 | 29716459 |