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 | 24300000 |
| 2 | 130691232 |
| 3 | 170100000 |
| 4 | 267300000 |
| 5 | 315900000 |
| 6 | 413100000 |
| 7 | 461700000 |
| 8 | 558900000 |
| 9 | 653456160 |
| 10 | 704700000 |
| 11 | 753300000 |
| 12 | 899100000 |
| 13 | 996300000 |
| 14 | 1044900000 |
| 15 | 1142100000 |
| 16 | 1190700000 |
| 17 | 1252332576 |
| 18 | 1287900000 |
| 19 | 1433700000 |
| 20 | 1437603552 |
| 21 | 1482300000 |
| 22 | 1628100000 |
| 23 | 1680700000 |