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 | 16 |
| 3 | 381 |
| 4 | 10496 |
| 5 | 307505 |
| 6 | 9316560 |
| 7 | 288307285 |
| 8 | 9052917760 |
| 9 | 287307428985 |
| 10 | 9192433560080 |
| 11 | 295998598024613 |
| 12 | 9580548525151488 |
| 13 | 311414673789269713 |
| 14 | 10158681128480830288 |
| 15 | 332394269045633574405 |
| 16 | 10904463909222273843200 |
| 17 | 358543696456299951516425 |