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 | 19 |
| 2 | 43 |
| 3 | 67 |
| 4 | 163 |
| 5 | 77683 |
| 6 | 1333963 |
| 7 | 2404147 |
| 8 | 20950603 |
| 9 | 36254563 |
| 10 | 51599563 |
| 11 | 96295483 |
| 12 | 114148483 |
| 13 | 269497867 |
| 14 | 585811843 |
| 15 | 52947440683 |
| 16 | 71837718283 |
| 17 | 229565917267 |
| 18 | 575528148427 |
| 19 | 1432817816347 |
| 20 | 6778817202523 |
| 21 | 16501779755323 |
| 22 | 30059924764123 |
| 23 | 110587910656507 |
| 24 | 4311527414591923 |
| 25 | 10472407114788067 |
| 26 | 22261805373620443 |
| 27 | 132958087830686827 |
| 28 | 441899002218793387 |
| 29 | 2278509757859388307 |
| 30 | 5694230275645018963 |
| 31 | 9828323860172600203 |