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 | 11 |
| 2 | 61 |
| 3 | 231 |
| 4 | 681 |
| 5 | 1683 |
| 6 | 3653 |
| 7 | 7183 |
| 8 | 13073 |
| 9 | 22363 |
| 10 | 36365 |
| 11 | 56695 |
| 12 | 85305 |
| 13 | 124515 |
| 14 | 177045 |
| 15 | 246047 |
| 16 | 335137 |
| 17 | 448427 |
| 18 | 590557 |
| 19 | 766727 |
| 20 | 982729 |
| 21 | 1244979 |
| 22 | 1560549 |
| 23 | 1937199 |
| 24 | 2383409 |
| 25 | 2908411 |
| 26 | 3522221 |
| 27 | 4235671 |
| 28 | 5060441 |
| 29 | 6009091 |
| 30 | 7095093 |
| 31 | 8332863 |
| 32 | 9737793 |
| 33 | 11326283 |