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 | 1772030917 |
| 2 | 4189391137 |
| 3 | 6222353693 |
| 4 | 7931800607 |
| 5 | 5959395829 |
| 6 | 5829056383 |
| 7 | 3832266131 |
| 8 | 6131992829 |
| 9 | 6892501711 |
| 10 | 9250171169 |
| 11 | 1043216269 |
| 12 | 3136144381 |
| 13 | 7587012203 |
| 14 | 7954454749 |
| 15 | 8509874339 |
| 16 | 4487706647 |
| 17 | 1240076521 |
| 18 | 7780531531 |
| 19 | 5315317141 |
| 20 | 1704666599 |
| 21 | 7046665991 |