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 | 8 |
| 1 | 17 |
| 2 | 44 |
| 3 | 116 |
| 4 | 305 |
| 5 | 800 |
| 6 | 2096 |
| 7 | 5489 |
| 8 | 14372 |
| 9 | 37628 |
| 10 | 98513 |
| 11 | 257912 |
| 12 | 675224 |
| 13 | 1767761 |
| 14 | 4628060 |
| 15 | 12116420 |
| 16 | 31721201 |
| 17 | 83047184 |
| 18 | 217420352 |
| 19 | 569213873 |
| 20 | 1490221268 |
| 21 | 3901449932 |
| 22 | 10214128529 |
| 23 | 26740935656 |
| 24 | 70008678440 |
| 25 | 183285099665 |
| 26 | 479846620556 |
| 27 | 1256254762004 |
| 28 | 3288917665457 |