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 | 3 |
| 2 | 7 |
| 3 | 23 |
| 4 | 61 |
| 5 | 127 |
| 6 | 199 |
| 7 | 337 |
| 8 | 479 |
| 9 | 677 |
| 10 | 937 |
| 11 | 1193 |
| 12 | 1511 |
| 13 | 1871 |
| 14 | 2267 |
| 15 | 2707 |
| 16 | 3251 |
| 17 | 3769 |
| 18 | 4349 |
| 19 | 5009 |
| 20 | 5711 |
| 21 | 6451 |
| 22 | 7321 |
| 23 | 8231 |
| 24 | 9173 |
| 25 | 10151 |
| 26 | 11197 |
| 27 | 12343 |
| 28 | 13487 |
| 29 | 14779 |
| 30 | 16097 |
| 31 | 17599 |
| 32 | 19087 |
| 33 | 20563 |
| 34 | 22109 |
| 35 | 23761 |
| 36 | 25469 |
| 37 | 27259 |
| 38 | 29123 |
| 39 | 31081 |
| 40 | 33029 |