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 | 50 |
| 2 | 2500 |
| 3 | 58806 |
| 4 | 825896 |
| 5 | 8165133 |
| 6 | 62305953 |
| 7 | 388531932 |
| 8 | 2057610878 |
| 9 | 9513089522 |
| 10 | 39201336756 |
| 11 | 146317003838 |
| 12 | 501049337826 |
| 13 | 1590725248238 |
| 14 | 4722687426852 |
| 15 | 13206968194237 |
| 16 | 35002231000213 |
| 17 | 88376951307032 |
| 18 | 213545507535686 |