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 | 2 |
| 1 | 3 |
| 2 | 7 |
| 3 | 11 |
| 4 | 13 |
| 5 | 19 |
| 6 | 197 |
| 7 | 251 |
| 8 | 389 |
| 9 | 1531 |
| 10 | 2053 |
| 11 | 3067 |
| 12 | 17669 |
| 13 | 25339 |
| 14 | 66821 |
| 15 | 105211 |
| 16 | 140549 |
| 17 | 318203 |
| 18 | 1008901 |
| 19 | 1940219 |
| 20 | 6710533 |
| 21 | 9804539 |
| 22 | 12215557 |
| 23 | 34970363 |
| 24 | 49964293 |
| 25 | 75864827 |
| 26 | 276456709 |
| 27 | 864393979 |
| 28 | 1350198533 |
| 29 | 2877659899 |
| 30 | 4101661957 |
| 31 | 7709498107 |
| 32 | 16449692933 |
| 33 | 51196041979 |