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 | 2 |
| 2 | 6 |
| 3 | 8 |
| 4 | 12 |
| 5 | 14 |
| 6 | 47 |
| 7 | 88 |
| 8 | 130 |
| 9 | 414 |
| 10 | 1388 |
| 11 | 1932 |
| 12 | 4106 |
| 13 | 4412 |
| 14 | 12870 |
| 15 | 22956 |
| 16 | 23932 |
| 17 | 27312 |
| 18 | 35316 |
| 19 | 37169 |
| 20 | 43873 |
| 21 | 150029 |