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 | 249984 |
| 2 | 14548480 |
| 3 | 469942528 |
| 4 | 11190054912 |
| 5 | 219921448448 |
| 6 | 3786548183040 |
| 7 | 59211819110400 |
| 8 | 861044410941440 |
| 9 | 11836043861688320 |
| 10 | 155624676666900480 |
| 11 | 1974466952368095232 |
| 12 | 24334201908725022720 |
| 13 | 292836028257957445632 |
| 14 | 3454921061964353372160 |
| 15 | 40092721917664469975040 |