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 | 2 |
| 2 | 3 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 15 |
| 7 | 17 |
| 8 | 66 |
| 9 | 196 |
| 10 | 233 |
| 11 | 284 |
| 12 | 375 |
| 13 | 1613 |
| 14 | 2131 |
| 15 | 3574 |
| 16 | 14122 |
| 17 | 24171 |
| 18 | 49097 |
| 19 | 56871 |
| 20 | 69361 |
| 21 | 193406 |
| 22 | 243145 |
| 23 | 289951 |
| 24 | 682749 |
| 25 | 14501588 |
| 26 | 21191773 |
| 27 | 121635191 |
| 28 | 810759781 |
| 29 | 1292785381 |
| 30 | 136110231377 |
| 31 | 294401497761 |