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 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 5 |
| 5 | 9 |
| 6 | 16 |
| 7 | 27 |
| 8 | 52 |
| 9 | 91 |
| 10 | 173 |
| 11 | 322 |
| 12 | 606 |
| 13 | 1152 |
| 14 | 2191 |
| 15 | 4191 |
| 16 | 8060 |
| 17 | 15540 |
| 18 | 30018 |
| 19 | 58161 |
| 20 | 112891 |
| 21 | 219479 |
| 22 | 427440 |
| 23 | 833615 |
| 24 | 1627752 |
| 25 | 3182068 |
| 26 | 6226916 |
| 27 | 12196740 |
| 28 | 23910690 |
| 29 | 46911434 |
| 30 | 92104753 |
| 31 | 180957883 |
| 32 | 355748937 |
| 33 | 699779680 |
| 34 | 1377255678 |