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 | 3 |
| 2 | 13 |
| 3 | 29 |
| 4 | 58 |
| 5 | 106 |
| 6 | 186 |
| 7 | 317 |
| 8 | 531 |
| 9 | 879 |
| 10 | 1444 |
| 11 | 2360 |
| 12 | 3844 |
| 13 | 6247 |
| 14 | 10137 |
| 15 | 16433 |
| 16 | 26622 |
| 17 | 43110 |
| 18 | 69790 |
| 19 | 112961 |
| 20 | 182815 |
| 21 | 295843 |
| 22 | 478728 |
| 23 | 774644 |
| 24 | 1253448 |
| 25 | 2028171 |
| 26 | 3281701 |
| 27 | 5309957 |
| 28 | 8591746 |