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 | 34 |
| 2 | 6126 |
| 3 | 113884 |
| 4 | 888420 |
| 5 | 4340094 |
| 6 | 15805218 |
| 7 | 47040968 |
| 8 | 120843752 |
| 9 | 277500282 |
| 10 | 583380598 |
| 11 | 1141982292 |
| 12 | 2107735180 |
| 13 | 3702875670 |
| 14 | 6237700074 |
| 15 | 10134506112 |
| 16 | 15955531856 |
| 17 | 24435201362 |
| 18 | 36516986238 |
| 19 | 53395192396 |
| 20 | 76561981236 |