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 | 4 |
| 1 | 6 |
| 2 | 12 |
| 3 | 22 |
| 4 | 36 |
| 5 | 54 |
| 6 | 76 |
| 7 | 102 |
| 8 | 132 |
| 9 | 166 |
| 10 | 204 |
| 11 | 246 |
| 12 | 292 |
| 13 | 342 |
| 14 | 396 |
| 15 | 454 |
| 16 | 516 |
| 17 | 582 |
| 18 | 652 |
| 19 | 726 |
| 20 | 804 |
| 21 | 886 |
| 22 | 972 |
| 23 | 1062 |
| 24 | 1156 |
| 25 | 1254 |
| 26 | 1356 |
| 27 | 1462 |
| 28 | 1572 |
| 29 | 1686 |
| 30 | 1804 |
| 31 | 1926 |
| 32 | 2052 |
| 33 | 2182 |
| 34 | 2316 |
| 35 | 2454 |
| 36 | 2596 |
| 37 | 2742 |
| 38 | 2892 |
| 39 | 3046 |
| 40 | 3204 |
| 41 | 3366 |
| 42 | 3532 |
| 43 | 3702 |
| 44 | 3876 |
| 45 | 4054 |
| 46 | 4236 |
| 47 | 4422 |