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) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 13 |
| 6 | 23 |
| 7 | 47 |
| 8 | 97 |
| 9 | 193 |
| 10 | 383 |
| 11 | 769 |
| 12 | 1531 |
| 13 | 3067 |
| 14 | 6133 |
| 15 | 12269 |
| 16 | 24533 |
| 17 | 49069 |
| 18 | 98129 |
| 19 | 196247 |
| 20 | 392503 |
| 21 | 785017 |
| 22 | 1570007 |
| 23 | 3140041 |
| 24 | 6280067 |
| 25 | 12560147 |
| 26 | 25120289 |
| 27 | 50240587 |
| 28 | 100481167 |
| 29 | 200962327 |
| 30 | 401924639 |
| 31 | 803849303 |
| 32 | 1607698583 |
| 33 | 3215397193 |
| 34 | 6430794373 |
| 35 | 12861588749 |