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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 12 |
| 8 | 22 |
| 9 | 42 |
| 10 | 80 |
| 11 | 152 |
| 12 | 292 |
| 13 | 568 |
| 14 | 1112 |
| 15 | 2185 |
| 16 | 4313 |
| 17 | 8557 |
| 18 | 17050 |
| 19 | 34089 |
| 20 | 68370 |
| 21 | 137542 |
| 22 | 277475 |
| 23 | 561185 |
| 24 | 1137595 |
| 25 | 2311014 |
| 26 | 4704235 |
| 27 | 9593662 |
| 28 | 19598920 |
| 29 | 40103635 |
| 30 | 82185653 |
| 31 | 168666493 |
| 32 | 346613232 |
| 33 | 713200114 |
| 34 | 1469254621 |
| 35 | 3030218948 |
| 36 | 6256281188 |