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 | 22 |
| 2 | 148 |
| 3 | 610 |
| 4 | 1897 |
| 5 | 4900 |
| 6 | 11088 |
| 7 | 22716 |
| 8 | 43065 |
| 9 | 76714 |
| 10 | 129844 |
| 11 | 210574 |
| 12 | 329329 |
| 13 | 499240 |
| 14 | 736576 |
| 15 | 1061208 |
| 16 | 1497105 |
| 17 | 2072862 |
| 18 | 2822260 |
| 19 | 3784858 |
| 20 | 5006617 |
| 21 | 6540556 |
| 22 | 8447440 |
| 23 | 10796500 |
| 24 | 13666185 |
| 25 | 17144946 |
| 26 | 21332052 |
| 27 | 26338438 |
| 28 | 32287585 |
| 29 | 39316432 |