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 | 3 |
| 3 | 4 |
| 4 | 10 |
| 5 | 18 |
| 6 | 46 |
| 7 | 48 |
| 8 | 121 |
| 9 | 154 |
| 10 | 158 |
| 11 | 170 |
| 12 | 196 |
| 13 | 211 |
| 14 | 250 |
| 15 | 294 |
| 16 | 316 |
| 17 | 320 |
| 18 | 663 |
| 19 | 975 |
| 20 | 1165 |
| 21 | 1351 |
| 22 | 4126 |
| 23 | 4270 |
| 24 | 5724 |
| 25 | 7156 |
| 26 | 15025 |
| 27 | 19132 |
| 28 | 25035 |
| 29 | 36174 |
| 30 | 77418 |