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 | 0 |
| 2 | 1944 |
| 3 | 12228 |
| 4 | 146064 |
| 5 | 1326576 |
| 6 | 13031664 |
| 7 | 119790816 |
| 8 | 1105914780 |
| 9 | 9987532176 |
| 10 | 89650751964 |
| 11 | 796324353216 |
| 12 | 7029528437100 |
| 13 | 61650349082232 |
| 14 | 537978900955440 |
| 15 | 4672818187679448 |
| 16 | 40427882184540648 |
| 17 | 348530963947264848 |