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 | 5 |
| 2 | 5 |
| 3 | 8 |
| 4 | 17 |
| 5 | 36 |
| 6 | 76 |
| 7 | 161 |
| 8 | 349 |
| 9 | 749 |
| 10 | 1604 |
| 11 | 3449 |
| 12 | 7412 |
| 13 | 15912 |
| 14 | 34177 |
| 15 | 73421 |
| 16 | 157693 |
| 17 | 338696 |
| 18 | 727505 |
| 19 | 1562612 |
| 20 | 3356300 |
| 21 | 7209009 |
| 22 | 15484261 |
| 23 | 33258581 |
| 24 | 71436052 |
| 25 | 153437513 |
| 26 | 329568260 |
| 27 | 707879240 |
| 28 | 1520453249 |
| 29 | 3265780149 |
| 30 | 7014565813 |