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 | 5 |
| 3 | 16 |
| 4 | 52 |
| 5 | 152 |
| 6 | 392 |
| 7 | 904 |
| 8 | 1899 |
| 9 | 3694 |
| 10 | 6743 |
| 11 | 11672 |
| 12 | 19318 |
| 13 | 30772 |
| 14 | 47426 |
| 15 | 71024 |
| 16 | 103717 |
| 17 | 148122 |
| 18 | 207385 |
| 19 | 285248 |
| 20 | 386120 |
| 21 | 515152 |
| 22 | 678316 |
| 23 | 882488 |
| 24 | 1135535 |
| 25 | 1446406 |
| 26 | 1825227 |
| 27 | 2283400 |
| 28 | 2833706 |
| 29 | 3490412 |
| 30 | 4269382 |
| 31 | 5188192 |
| 32 | 6266249 |