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 | 3 |
| 1 | 5 |
| 2 | 11 |
| 3 | 29 |
| 4 | 83 |
| 5 | 7 |
| 6 | 43 |
| 7 | 199 |
| 8 | 6563 |
| 9 | 127 |
| 10 | 59051 |
| 11 | 25307 |
| 12 | 48313 |
| 13 | 63773 |
| 14 | 4782971 |
| 15 | 14348909 |
| 16 | 119243 |
| 17 | 335429 |
| 18 | 23203 |
| 19 | 10613 |
| 20 | 60089 |
| 21 | 1224149 |
| 22 | 795323 |
| 23 | 919 |
| 24 | 282429536483 |
| 25 | 1583717027 |
| 26 | 2541865828331 |
| 27 | 693236134999 |
| 28 | 174632003473 |