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 | 1 |
| 1 | 5 |
| 2 | 29 |
| 3 | 44 |
| 4 | 66 |
| 5 | 126 |
| 6 | 238 |
| 7 | 490 |
| 8 | 922 |
| 9 | 1714 |
| 10 | 3306 |
| 11 | 6246 |
| 12 | 12102 |
| 13 | 22994 |
| 14 | 43682 |
| 15 | 83810 |
| 16 | 159154 |
| 17 | 305062 |
| 18 | 581382 |
| 19 | 1108362 |
| 20 | 2119602 |
| 21 | 4037338 |
| 22 | 7716554 |
| 23 | 14720142 |
| 24 | 28084702 |
| 25 | 53639778 |
| 26 | 102298794 |
| 27 | 195341594 |
| 28 | 372753634 |
| 29 | 711338798 |
| 30 | 1357975774 |