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 | 1872851947 |
| 2 | 2362150363 |
| 3 | 2394261637 |
| 4 | 2880755131 |
| 5 | 2891509333 |
| 6 | 3353981623 |
| 7 | 3512569873 |
| 8 | 3727051753 |
| 9 | 3847458487 |
| 10 | 4008610423 |
| 11 | 4486630573 |
| 12 | 4541745583 |
| 13 | 4755895531 |
| 14 | 4837532347 |
| 15 | 5227869607 |
| 16 | 5389475977 |
| 17 | 6201260587 |
| 18 | 6229685347 |
| 19 | 6952228483 |
| 20 | 7325665111 |
| 21 | 7414468513 |