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 | 5 |
| 3 | 13 |
| 4 | 32 |
| 5 | 77 |
| 6 | 178 |
| 7 | 399 |
| 8 | 877 |
| 9 | 1882 |
| 10 | 3959 |
| 11 | 8179 |
| 12 | 16636 |
| 13 | 33333 |
| 14 | 65894 |
| 15 | 128633 |
| 16 | 248169 |
| 17 | 473585 |
| 18 | 894573 |
| 19 | 1673704 |
| 20 | 3103334 |
| 21 | 5705383 |
| 22 | 10405080 |
| 23 | 18831761 |
| 24 | 33836627 |
| 25 | 60378964 |
| 26 | 107035022 |
| 27 | 188553965 |
| 28 | 330166814 |
| 29 | 574815804 |
| 30 | 995229598 |
| 31 | 1714004131 |
| 32 | 2936857097 |