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 | 3 |
| 5 | 7 |
| 6 | 13 |
| 7 | 21 |
| 8 | 37 |
| 9 | 73 |
| 10 | 147 |
| 11 | 283 |
| 12 | 531 |
| 13 | 1007 |
| 14 | 1953 |
| 15 | 3817 |
| 16 | 7423 |
| 17 | 14371 |
| 18 | 27877 |
| 19 | 54333 |
| 20 | 106189 |
| 21 | 207585 |
| 22 | 405743 |
| 23 | 793719 |
| 24 | 1554889 |
| 25 | 3049525 |
| 26 | 5984803 |
| 27 | 11751067 |
| 28 | 23086695 |
| 29 | 45388291 |
| 30 | 89289765 |
| 31 | 175746797 |
| 32 | 346077153 |
| 33 | 681795925 |
| 34 | 1343790319 |
| 35 | 2649687079 |
| 36 | 5226711507 |