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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 15 |
| 5 | 21 |
| 6 | 61 |
| 7 | 183 |
| 8 | 285 |
| 9 | 327 |
| 10 | 1385 |
| 11 | 4155 |
| 12 | 6681 |
| 13 | 8475 |
| 14 | 9129 |
| 15 | 50521 |
| 16 | 151563 |
| 17 | 247065 |
| 18 | 325947 |
| 19 | 378105 |
| 20 | 396363 |
| 21 | 2702765 |
| 22 | 8108295 |
| 23 | 13311741 |
| 24 | 17908935 |
| 25 | 21517869 |
| 26 | 23823015 |
| 27 | 24615741 |
| 28 | 199360981 |
| 29 | 598082943 |
| 30 | 985993845 |
| 31 | 1341471567 |
| 32 | 1643702325 |
| 33 | 1874297343 |