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 | 2 |
| 1 | 6 |
| 2 | 16 |
| 3 | 34 |
| 4 | 72 |
| 5 | 122 |
| 6 | 214 |
| 7 | 338 |
| 8 | 516 |
| 9 | 734 |
| 10 | 1062 |
| 11 | 1438 |
| 12 | 1970 |
| 13 | 2586 |
| 14 | 3322 |
| 15 | 4186 |
| 16 | 5322 |
| 17 | 6566 |
| 18 | 8152 |
| 19 | 9898 |
| 20 | 11896 |
| 21 | 14114 |
| 22 | 16838 |
| 23 | 20254 |
| 24 | 23982 |
| 25 | 28196 |
| 26 | 32746 |
| 27 | 38108 |
| 28 | 43710 |
| 29 | 50242 |
| 30 | 57286 |
| 31 | 64990 |
| 32 | 73238 |
| 33 | 82326 |
| 34 | 91846 |
| 35 | 102698 |
| 36 | 114234 |
| 37 | 126706 |
| 38 | 139818 |