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 | 1 |
| 2 | 9 |
| 3 | 13 |
| 4 | 15 |
| 5 | 220 |
| 6 | 1610 |
| 7 | 1822 |
| 8 | 4879 |
| 9 | 61992 |
| 10 | 124838 |
| 11 | 604739 |
| 12 | 771780 |
| 13 | 802771 |
| 14 | 915973 |
| 15 | 918868 |
| 16 | 2722883 |
| 17 | 3466893 |