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 | 1 |
| 2 | 7 |
| 3 | 511 |
| 4 | 10033 |
| 5 | 242959 |
| 6 | 1265839 |
| 7 | 1838599 |
| 8 | 4138729 |
| 9 | 4446631 |
| 10 | 10561159 |
| 11 | 13179319 |
| 12 | 19926007 |
| 13 | 21224239 |
| 14 | 38356159 |
| 15 | 65746249 |
| 16 | 72161239 |
| 17 | 82180303 |
| 18 | 87563239 |
| 19 | 88323689 |
| 20 | 98352799 |
| 21 | 124563313 |
| 22 | 153394537 |
| 23 | 158525689 |
| 24 | 219011569 |
| 25 | 248520769 |
| 26 | 348485359 |
| 27 | 498260329 |
| 28 | 636381799 |
| 29 | 638395369 |
| 30 | 685333399 |
| 31 | 689463889 |