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 | 0 |
| 2 | 2 |
| 3 | 6 |
| 4 | 12 |
| 5 | 22 |
| 6 | 34 |
| 7 | 50 |
| 8 | 68 |
| 9 | 88 |
| 10 | 110 |
| 11 | 144 |
| 12 | 170 |
| 13 | 212 |
| 14 | 254 |
| 15 | 302 |
| 16 | 354 |
| 17 | 398 |
| 18 | 432 |
| 19 | 492 |
| 20 | 566 |
| 21 | 666 |
| 22 | 712 |
| 23 | 744 |
| 24 | 850 |
| 25 | 960 |
| 26 | 984 |
| 27 | 1106 |