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 | 823766851 |
| 2 | 1203424471 |
| 3 | 1647646771 |
| 4 | 2539428211 |
| 5 | 4100784871 |
| 6 | 4492676371 |
| 7 | 5183970931 |
| 8 | 6326736151 |
| 9 | 6330402751 |
| 10 | 8251729531 |
| 11 | 8735517211 |
| 12 | 10570534171 |
| 13 | 11212271071 |
| 14 | 12478723111 |
| 15 | 13609280431 |
| 16 | 16631896051 |
| 17 | 18781331911 |
| 18 | 18884910871 |
| 19 | 20211833071 |
| 20 | 20568043471 |
| 21 | 20572400551 |