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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 11 |
| 6 | 22 |
| 7 | 45 |
| 8 | 92 |
| 9 | 188 |
| 10 | 382 |
| 11 | 791 |
| 12 | 1632 |
| 13 | 3357 |
| 14 | 6922 |
| 15 | 14289 |
| 16 | 29542 |
| 17 | 61013 |
| 18 | 126142 |
| 19 | 260664 |
| 20 | 538850 |
| 21 | 1113372 |
| 22 | 2300954 |
| 23 | 4752279 |
| 24 | 9814226 |
| 25 | 20257082 |
| 26 | 41798206 |
| 27 | 86204773 |
| 28 | 177729712 |
| 29 | 366231907 |
| 30 | 754356336 |
| 31 | 1553063269 |
| 32 | 3196028942 |
| 33 | 6573883225 |
| 34 | 13515943986 |
| 35 | 27775807554 |