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 | 3 |
| 2 | 8 |
| 3 | 19 |
| 4 | 43 |
| 5 | 94 |
| 6 | 202 |
| 7 | 429 |
| 8 | 905 |
| 9 | 1901 |
| 10 | 3983 |
| 11 | 8332 |
| 12 | 17413 |
| 13 | 36370 |
| 14 | 75938 |
| 15 | 158519 |
| 16 | 330862 |
| 17 | 690523 |
| 18 | 1441082 |
| 19 | 3007369 |
| 20 | 6275917 |
| 21 | 13096737 |
| 22 | 27330418 |
| 23 | 57033206 |
| 24 | 119016808 |
| 25 | 248363751 |
| 26 | 518283950 |
| 27 | 1081551220 |
| 28 | 2256972626 |
| 29 | 4709831964 |
| 30 | 9828437634 |
| 31 | 20509899437 |
| 32 | 42799880699 |