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 | 7 |
| 2 | 7 |
| 3 | 64 |
| 4 | 106 |
| 5 | 113 |
| 6 | 113 |
| 7 | 24175 |
| 8 | 32085 |
| 9 | 33102 |
| 10 | 99532 |
| 11 | 265381 |
| 12 | 1360120 |
| 13 | 1725033 |
| 14 | 18610450 |
| 15 | 25510582 |
| 16 | 78256779 |
| 17 | 340262731 |
| 18 | 811528438 |
| 19 | 1963319607 |
| 20 | 6701487259 |
| 21 | 6701487259 |
| 22 | 413528890451 |
| 23 | 554260122890 |
| 24 | 1142027682075 |
| 25 | 2851718461558 |
| 26 | 2851718461558 |
| 27 | 41633749241295 |
| 28 | 91822653867264 |