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 | 1 |
| 2 | 4 |
| 3 | 31 |
| 4 | 62 |
| 5 | 64 |
| 6 | 111 |
| 7 | 129 |
| 8 | 131 |
| 9 | 30764 |
| 10 | 30766 |
| 11 | 30768 |
| 12 | 56127 |
| 13 | 56167 |
| 14 | 56199 |
| 15 | 56513 |
| 16 | 56515 |
| 17 | 56827 |
| 18 | 99734 |
| 19 | 58055311 |
| 20 | 904012796 |
| 21 | 904032692 |
| 22 | 1610175617 |
| 23 | 1610178287 |
| 24 | 1610186343 |
| 25 | 2789149734 |
| 26 | 13808214835 |
| 27 | 325374625053 |
| 28 | 325374625245 |