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 | 17 |
| 2 | 353 |
| 3 | 7793 |
| 4 | 45377 |
| 5 | 588737 |
| 6 | 1603073 |
| 7 | 2131937 |
| 8 | 2782097 |
| 9 | 23705153 |
| 10 | 27488177 |
| 11 | 36393857 |
| 12 | 142457633 |
| 13 | 156688577 |
| 14 | 288296417 |
| 15 | 423617057 |
| 16 | 780627473 |
| 17 | 830968337 |
| 18 | 938914433 |
| 19 | 1254730193 |
| 20 | 5724613457 |
| 21 | 9150064577 |
| 22 | 13500386657 |
| 23 | 15247220033 |