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 | 17 |
| 3 | 14 |
| 4 | 33 |
| 5 | 101 |
| 6 | 248 |
| 7 | 657 |
| 8 | 1841 |
| 9 | 4892 |
| 10 | 13020 |
| 11 | 35447 |
| 12 | 95226 |
| 13 | 255042 |
| 14 | 688238 |
| 15 | 1852413 |
| 16 | 4976015 |
| 17 | 13395869 |
| 18 | 36053423 |
| 19 | 96953152 |
| 20 | 260865015 |
| 21 | 701948030 |
| 22 | 1888295155 |
| 23 | 5080237927 |
| 24 | 13668712238 |
| 25 | 36773414080 |
| 26 | 98934258153 |
| 27 | 266178278368 |