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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 8 |
| 3 | 12 |
| 4 | 20 |
| 5 | 21 |
| 6 | 22 |
| 7 | 29 |
| 8 | 42 |
| 9 | 52 |
| 10 | 58 |
| 11 | 85 |
| 12 | 91 |
| 13 | 142 |
| 14 | 185 |
| 15 | 208 |
| 16 | 212 |
| 17 | 229 |
| 18 | 243 |
| 19 | 291 |
| 20 | 351 |
| 21 | 420 |
| 22 | 452 |
| 23 | 514 |
| 24 | 720 |
| 25 | 821 |
| 26 | 1142 |
| 27 | 1212 |
| 28 | 1243 |
| 29 | 1254 |
| 30 | 1391 |
| 31 | 1420 |
| 32 | 2021 |
| 33 | 2058 |
| 34 | 2124 |
| 35 | 2125 |
| 36 | 2291 |
| 37 | 2413 |
| 38 | 3514 |
| 39 | 3912 |
| 40 | 4208 |
| 41 | 4720 |
| 42 | 5212 |
| 43 | 5452 |
| 44 | 5821 |
| 45 | 8219 |
| 46 | 9121 |
| 47 | 9351 |
| 48 | 12125 |