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 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 12 |
| 6 | 27 |
| 7 | 59 |
| 8 | 128 |
| 9 | 277 |
| 10 | 597 |
| 11 | 1280 |
| 12 | 2730 |
| 13 | 5794 |
| 14 | 12248 |
| 15 | 25836 |
| 16 | 54508 |
| 17 | 115222 |
| 18 | 244144 |
| 19 | 518104 |
| 20 | 1099499 |
| 21 | 2330326 |
| 22 | 4930089 |
| 23 | 10415135 |
| 24 | 21992400 |
| 25 | 46470911 |
| 26 | 98353146 |
| 27 | 208580686 |
| 28 | 443186181 |
| 29 | 942988423 |
| 30 | 2007981801 |
| 31 | 4276830431 |
| 32 | 9109431322 |
| 33 | 19404918449 |
| 34 | 41357252072 |
| 35 | 88236092543 |