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 | 3 |
| 1 | 5 |
| 2 | 8 |
| 3 | 14 |
| 4 | 26 |
| 5 | 59 |
| 6 | 89 |
| 7 | 167 |
| 8 | 377 |
| 9 | 734 |
| 10 | 1376 |
| 11 | 2741 |
| 12 | 5624 |
| 13 | 11120 |
| 14 | 22166 |
| 15 | 44222 |
| 16 | 88262 |
| 17 | 176180 |
| 18 | 353042 |
| 19 | 707648 |
| 20 | 1419974 |
| 21 | 2836751 |
| 22 | 5679620 |
| 23 | 11365592 |
| 24 | 22723865 |
| 25 | 45445442 |
| 26 | 90899234 |
| 27 | 181828850 |