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 | 20 |
| 3 | 30 |
| 4 | 60 |
| 5 | 212 |
| 6 | 224 |
| 7 | 258 |
| 8 | 272 |
| 9 | 390 |
| 10 | 398 |
| 11 | 480 |
| 12 | 504 |
| 13 | 654 |
| 14 | 770 |
| 15 | 812 |
| 16 | 1040 |
| 17 | 1194 |
| 18 | 1448 |
| 19 | 1698 |
| 20 | 1748 |
| 21 | 1874 |
| 22 | 2000 |
| 23 | 2238 |
| 24 | 2274 |
| 25 | 2294 |
| 26 | 2438 |
| 27 | 2522 |
| 28 | 2664 |
| 29 | 2714 |
| 30 | 2790 |
| 31 | 2802 |
| 32 | 3020 |
| 33 | 3138 |
| 34 | 3168 |
| 35 | 3300 |
| 36 | 3392 |
| 37 | 3434 |
| 38 | 3794 |
| 39 | 4160 |
| 40 | 4232 |
| 41 | 4518 |
| 42 | 4722 |
| 43 | 4968 |
| 44 | 5334 |
| 45 | 5654 |
| 46 | 5658 |