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 | 175742294 |
| 2 | 6263852385 |
| 3 | 16082297385 |
| 4 | 18625120185 |
| 5 | 32553626105 |
| 6 | 38947446285 |
| 7 | 37626449685 |
| 8 | 41194817265 |
| 9 | 103052922665 |
| 10 | 87988279533 |
| 11 | 103552755405 |
| 12 | 126755126589 |
| 13 | 131943742994 |
| 14 | 192245655405 |
| 15 | 226960409585 |
| 16 | 181521732405 |
| 17 | 502566224565 |
| 18 | 399451768365 |
| 19 | 403080683565 |
| 20 | 461943100905 |