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 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 13 |
| 5 | 24 |
| 6 | 42 |
| 7 | 73 |
| 8 | 125 |
| 9 | 204 |
| 10 | 324 |
| 11 | 511 |
| 12 | 801 |
| 13 | 1228 |
| 14 | 1856 |
| 15 | 2780 |
| 16 | 4135 |
| 17 | 6084 |
| 18 | 8873 |
| 19 | 12847 |
| 20 | 18481 |
| 21 | 26416 |
| 22 | 37473 |
| 23 | 52871 |
| 24 | 74216 |
| 25 | 103596 |
| 26 | 143841 |
| 27 | 198839 |
| 28 | 273654 |
| 29 | 374987 |
| 30 | 511735 |
| 31 | 695559 |
| 32 | 941932 |
| 33 | 1271139 |
| 34 | 1709474 |
| 35 | 2291195 |
| 36 | 3061385 |
| 37 | 4078152 |
| 38 | 5416322 |