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 | 121643775 |
| 2 | 157390064 |
| 3 | 161019495 |
| 4 | 275734304 |
| 5 | 584899875 |
| 6 | 1493214975 |
| 7 | 1614323655 |
| 8 | 2043708975 |
| 9 | 3081783375 |
| 10 | 3118599224 |
| 11 | 3426851295 |
| 12 | 3902652495 |
| 13 | 3947893424 |
| 14 | 5849043375 |
| 15 | 11731509855 |
| 16 | 12138531615 |
| 17 | 13008843224 |
| 18 | 14598032624 |
| 19 | 17588484584 |
| 20 | 19782621495 |
| 21 | 20191564575 |
| 22 | 20759209064 |