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) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 36 |
| 3 | 404 |
| 4 | 5076 |
| 5 | 68324 |
| 6 | 963396 |
| 7 | 14046964 |
| 8 | 210062196 |
| 9 | 3204118724 |
| 10 | 49656709476 |
| 11 | 779690085204 |
| 12 | 12376867734036 |
| 13 | 198301332087204 |
| 14 | 3202580085625476 |
| 15 | 52080967814444724 |
| 16 | 852103170531254196 |
| 17 | 14016301507253656964 |