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 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 2 |
| 5 | 2 |
| 6 | 18 |
| 7 | 48 |
| 8 | 46 |
| 9 | 80 |
| 10 | 130 |
| 11 | 74 |
| 12 | 120 |
| 13 | 118 |
| 14 | 136 |
| 15 | 174 |
| 16 | 132 |
| 17 | 168 |
| 18 | 198 |
| 19 | 190 |
| 20 | 130 |
| 21 | 176 |
| 22 | 234 |
| 23 | 358 |
| 24 | 102 |
| 25 | 354 |
| 26 | 364 |
| 27 | 336 |
| 28 | 324 |
| 29 | 486 |
| 30 | 442 |