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 | 7757430 |
| 2 | 31286970 |
| 3 | 360821505 |
| 4 | 365536215 |
| 5 | 414779430 |
| 6 | 418803000 |
| 7 | 428547690 |
| 8 | 428823900 |
| 9 | 434768475 |
| 10 | 508654155 |
| 11 | 584808795 |
| 12 | 732681630 |
| 13 | 809814510 |
| 14 | 846079035 |
| 15 | 857095380 |
| 16 | 968314215 |
| 17 | 1115279880 |
| 18 | 1187901285 |
| 19 | 1193371860 |
| 20 | 1244805450 |