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 | 5 |
| 2 | 109 |
| 3 | 257 |
| 4 | 1373 |
| 5 | 2917 |
| 6 | 4001 |
| 7 | 27437 |
| 8 | 62501 |
| 9 | 157217 |
| 10 | 202613 |
| 11 | 237277 |
| 12 | 296353 |
| 13 | 470597 |
| 14 | 629857 |
| 15 | 665501 |
| 16 | 1492993 |
| 17 | 1556069 |
| 18 | 1898209 |
| 19 | 2456501 |
| 20 | 2634013 |
| 21 | 3217429 |
| 22 | 3322337 |
| 23 | 4244833 |
| 24 | 5038849 |
| 25 | 5180117 |
| 26 | 6572129 |
| 27 | 10512289 |
| 28 | 11453153 |
| 29 | 12706093 |