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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 11 |
| 5 | 27 |
| 6 | 59 |
| 7 | 123 |
| 8 | 123 |
| 9 | 379 |
| 10 | 379 |
| 11 | 379 |
| 12 | 379 |
| 13 | 4475 |
| 14 | 12667 |
| 15 | 29051 |
| 16 | 61819 |
| 17 | 127355 |
| 18 | 127355 |
| 19 | 127355 |
| 20 | 127355 |
| 21 | 127355 |
| 22 | 2224507 |
| 23 | 2224507 |
| 24 | 2224507 |
| 25 | 19001723 |
| 26 | 52556155 |
| 27 | 119665019 |
| 28 | 253882747 |
| 29 | 253882747 |
| 30 | 253882747 |
| 31 | 1327624571 |
| 32 | 3475108219 |
| 33 | 7770075515 |