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 | 660 |
| 2 | 1092 |
| 3 | 4080 |
| 4 | 3420 |
| 5 | 6072 |
| 6 | 7800 |
| 7 | 9828 |
| 8 | 14880 |
| 9 | 32736 |
| 10 | 25308 |
| 11 | 51888 |
| 12 | 58800 |
| 13 | 74412 |
| 14 | 194472 |
| 15 | 265680 |
| 16 | 456288 |
| 17 | 612468 |
| 18 | 1024128 |
| 19 | 2097024 |
| 20 | 2165292 |
| 21 | 3594432 |
| 22 | 7174332 |
| 23 | 8487168 |
| 24 | 28090752 |
| 25 | 57750408 |
| 26 | 96049728 |
| 27 | 321367392 |